Answer:
8,2
Step-by-step explanation:
Anna, Betty and Candy shared a box of sweets. Anna took 8 more than 1/3 of the number of sweets in the box. Betty took 18 more than half of the remaining number of sweets . If Candy took the last 6 sweets, how many sweets were there in the box at first?
Answer: 108
Step-by-step explanation: Let the total number of sweets be x
Therefore, Anna - (x/3)+8
After Anna, remaining amount is x - ((x/3)+8) = 2x/3 + 8
Betty took (2x/3 + 8)/2 + 18 = x/3 + 22
Remaining = x - ((x/3)+8) - (x/3 + 22) = x/3 -30
Candy took the rest which is 6 i.e.
x/3 - 30 = 6
x/3 = 36
x = 108
what is the solution to the equation below? sqrt 2-3x / sqrt 4x =2
The solution to the equation sqrt 2-3x / sqrt 4x = 2 is x = -2/3.
To solve the equation, we must first clear the denominators and simplify the equation. We can do this by multiplying both sides by sqrt(4x) and then squaring both sides. This gives us:
sqrt 2-3x = 4sqrt x
2 - 6x + 9x² = 16x
9x² - 22x + 2 = 0
Using the quadratic formula, we can find that x = (-b ± sqrt(b² - 4ac)) / 2a. Plugging in a = 9, b = -22, and c = 2, we get:
x = (-(-22) ± sqrt((-22)² - 4(9)(2))) / 2(9)
x = (22 ± sqrt(352)) / 18
x = (22 ± 4sqrt22) / 18
Simplifying this expression, we get:
x = (11 ± 2sqrt22) / 9
Therefore, the solution to the equation is x = -2/3.
To solve the equation sqrt 2-3x / sqrt 4x = 2, we must clear the denominators and simplify the equation. This involves multiplying both sides by sqrt(4x) and then squaring both sides.
After simplifying, we end up with a quadratic equation. Using the quadratic formula, we can find that the solutions are x = (11 ± 2sqrt22) / 9.
However, we must check that these solutions do not result in a division by zero, as the original equation involves square roots. It turns out that the only valid solution is x = -2/3.
Therefore, this is the solution to the equation.
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Algebraic expression for 4less then 3x
When 'x' is 5, the Algebraic expression 3x - 4 evaluates to 11.
To find the algebraic expression for "4 less than the product of 3 and some number," let's break it down step by step.
First, let's define the unknown number as 'x.' Since the problem states "the product of 3 and some number," we can express this as 3 * x or simply 3x.
Next, we want to subtract 4 from this product. The phrase "4 less than" indicates subtraction, so we subtract 4 from 3x. This can be represented as 3x - 4.
In summary, the algebraic expression for "4 less than the product of 3 and some number" is 3x - 4, where 'x' represents the unknown number.
To calculate the value of this expression for a specific value of 'x,' you substitute that value into the expression and simplify. For example, if 'x' is 5, you would substitute 5 into the expression:
3(5) - 4
This simplifies to:
15 - 4 = 11
So, when 'x' is 5, the expression 3x - 4 evaluates to 11.
In general, the algebraic expression allows us to represent a mathematical relationship between quantities using symbols and operations. By substituting specific values into the expression, we can calculate the corresponding results.
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Note the complete question:
Algebraic expression for 4 less than the product of 3 and some number
What is the algebraic expression for "4 less than the product of 3 and some number?
Please help me understand the meaning of how to calculate.
Which is the correct classification of StartRoot 18 EndRoot?
irrational number, non-repeating decimal
irrational number, terminating decimal
rational number, terminating decimal
rational number, non-repeating decimal
The correct classification for √18 is an irrational number, non-repeating decimal.
The correct classification of √18 is an irrational number.An irrational number is a number that cannot be expressed as a fraction (ratio) of two integers and cannot be written as a terminating or repeating decimal.
√18 cannot be simplified to a fraction, and when expressed as a decimal, it is a non-repeating decimal that continues indefinitely without a pattern.
Therefore, the correct classification for √18 is an irrational number, non-repeating decimal.The number √18 is the square root of 18. An irrational number is a number that cannot be expressed as a fraction of two integers (a/b) where a and b are integers and b is not equal to zero.
When we calculate the square root of 18, we find that it is approximately 4.24264. However, this decimal representation continues indefinitely without repeating or terminating. It does not settle into a pattern of digits that repeats infinitely like a rational number or terminate after a finite number of decimal places.
Since √18 cannot be expressed as a fraction and its decimal representation is non-repeating and non-terminating, it falls under the category of an irrational number.
Therefore, the correct classification of √18 is an irrational number, specifically a non-repeating decimal.
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Somebody answer the damm question
Answer:
No
Just kidding its b
A.........is ......... the .........answer
Two cars leave the same point at the same time travelling in opposite directions. one car travels west at 20 mph and the other travels east at 60 mph. In how many hours will they be 280 miles apart?
It will take 3.5 hours for the two cars to be 280 miles apart.
To determine the time it takes for the two cars to be 280 miles apart, we can use the concept of relative velocity.
Since the cars are traveling in opposite directions, their velocities can be added together to find their relative velocity:
Relative velocity = Velocity of car traveling east + Velocity of car traveling west
Relative velocity = 60 mph + 20 mph
Relative velocity = 80 mph
The relative velocity of the cars is 80 mph, which means that they are moving away from each other at a combined speed of 80 mph.
To find the time it takes for them to be 280 miles apart, we can use the formula:
Time = Distance / Speed
Plugging in the values, we have:
Time = 280 miles / 80 mph
Time = 3.5 hours
Therefore, it will take 3.5 hours for the two cars to be 280 miles apart.
During this time, the car traveling east would have covered a distance of 60 mph × 3.5 hours = 210 miles, while the car traveling west would have covered a distance of 20 mph × 3.5 hours = 70 miles.
The sum of these distances is indeed 280 miles, confirming the result.
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Which graph represents the following piecewise defined function?
The graph that represents the given piecewise function has a range of
R: (-∞, 0) ∪ (0,2] ∪ (4, ∞).
What is a piecewise function?A piecewise function is a combination of subfunctions that are defined with different intervals in the domain.
The range of the piecewise function is the union of all the ranges of the subfunctions.
Calculation:The given piecewise function is
g(x) = x², x < 0
= 1/2 x, 0 < x ≤ 4
= x, x > 4
The domain and range for the subfunctions in the given piecewise function are:
for g(x) = x²; Domain is {x < 0} and Range is (-∞, 0)
for g(x) = 1/2 x; Domain is {0 < x ≤ 4} and Range is (0, 2]
for g(x) = x; Domain is {x > 4} and Range is (4, ∞)
Then, the range of the given piecewise function is
Range: (-∞, 0) ∪ (0, 2] ∪ (4, ∞)
Thus, the graph shown in the question is the correct one.
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Answer: c, its da 3rd graph
Step-by-step explanation:
the data below shows the number of car thefts in a city for a period of 20 days. complete parts (a) and (b) below.
51, 64, 71, 56, 53, 68, 53, 49, 70, 33
64, 53, 79, 65, 55, 46, 80, 76, 73, 74
a. Draw an ordered stem and leaf plot for the data.
Answer:
Kindly check explanation
Step-by-step explanation:
The oederd data :
33, 46, 49, 51, 53, 53, 53, 55, 56, 64, 64, 65, 68, 70, 71, 73, 74, 76, 79, 80
Stem Leaf
3 | 3
4 | 6 9
5 | 1 3 3 3 5 6
6 | 4 4 5 8
7 | 0 1 3 4 6 9
8 | 0
Key :
3 | 3 = 33
How many solutions does this equation have?
4u − 5 − 5u = 3 − u
Answer:
It has 0 solutions.
Step-by-step explanation:
Question 3 of 10
Complete the square to solve the equation below.
x2-10X-2 = 17
Answer:
D.
Step-by-step explanation:
\(x^2-10x-2=17\)
Add 2 to both sides:
\(x^2-10x-2+2=17+2\)
\(x^2-10x=19\)
Add half of the coefficient of the x, squared to both sides:
\(x^2-10x+\left(-5\right)^2=19+\left(-5\right)^2\)
Simplify:
\(x^2-10x+\left(-5\right)^2=44\)
Complete the square:
\(\left(x-5\right)^2=44\)
\(x-5=\sqrt[]{44}\) or \(x-5=-\sqrt[]{44}\)
\(x=\sqrt{44} +5\) or \(x=-\sqrt{44} +5\)
The answer is D..............
What is the equation, in point-slope form, of the line that is parallel to the given line and passes through the point (-3, 1)?
Answer:
y-1= -1/3(x+3)
Step-by-step explanation:
y-y1=m(x-x1)
y-1=m(x+3)
the slope is rise over run
the slope is -1/3
Answer:
y - 1 = 3/2 (x + 3)
Step-by-step explanation:
To find the equation of a line parallel to the given line and passing through the point (-3, 1), we can use the point-slope form of a linear equation. The point-slope form is given by:
y - y₁ = m(x - x₁)
Where (x₁, y₁) is the given point and m is the slope of the line.
First, let's calculate the slope of the given line using the two points (-2, -4) and (2, 2):
slope = (y₂ - y₁) / (x₂ - x₁)
= (2 - (-4)) / (2 - (-2))
= 6 / 4
= 3/2
Since the line we want to find is parallel to the given line, it will have the same slope. Therefore, the slope (m) of the new line is also 3/2.
Now we can substitute the values into the point-slope form using the point (-3, 1):
y - 1 = (3/2)(x - (-3))
y - 1 = (3/2)(x + 3)
The equation in point-slope form of the line parallel to the given line and passing through the point (-3, 1) is:
y - 1 = 3/2 (x + 3)
According to Greg, the perfect cherry pies have a ratio of 240 cherries to 3 pies. How many cherries does Greg need to make 9 perfect cherry pies?
Answer:
720 cherries
Step-by-step explanation:
3 pies need 240 cherries so the equation would be:
3c = 240
so, c = 80
But, he needs to make 9 "perfect" pies so you make the equation:
9c = 80*9
9c = 720
So Greg needs 720 cherries to make 9 perfect cherry pies.
Sam’s Swimming Pool Cleaning has an annual gross profit of $88,400. Sam charges $25 per week for each of his customers for 52 weeks. His annual operating expenses, including labor and supplies, are $48,000. How many customers does Sam’s Swimming Pool Cleaning have?
a.
17
b.
35
c.
68
d.
105
Answer:
D.
Step-by-step explanation:
To find the number of customers Sam's Swimming Pool Cleaning has, we need to calculate the total revenue generated by the business and divide it by the weekly charge per customer.
Total revenue = 52 x $25 x number of customers
We know that the annual gross profit is $88,400. So, we can set up an equation to find the number of customers:
$88,400 = 52 x $25 x number of customers - $48,000
$88,400 + $48,000 = 52 x $25 x number of customers
$136,400 = $1,300 x number of customers
Number of customers = $136,400/$1,300
Number of customers = 105
Therefore, Sam's Swimming Pool Cleaning has 105 customers. The correct answer is D.
Sam’s Swimming Pool Cleaning have 105 customers.
What is an expression?An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division. The structure of an expression is:
To get how many customers Sam has, write an equation that will relate to the gross profit. Let n be the customers. Since for 52 weeks, Sam charges $25 per week per person, multiply n by the number of weeks and the charge. The equation is written as $88,400 = 52 weeks x $25 per week x n persons. Divide $88,400 by the product of 52 weeks and the $25 charge. The answer will be 105.
Therefore, Sam’s Swimming Pool Cleaning have 105 customers.
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Geometry question..can anyone help?
Answer:
For the trapezoid it is the y axis.....
For the triangles it is the x axis
Name the addition property illustrated by each of the following examples: A + (B + C) = (A + B) + C property A + B = B + A property A + (−A) = 0 property A + 0 = A property
The different Algebraic Properties that were used are:
1) Associative Property
2) Commutative Property
3) Inverse Property
4) Identity Property
How to find the Algebraic Property?There are different Algebraic Properties such as:
Commutative Property
Associative Property
Inverse Property
Identity Property
1) A + (B + C) = (A + B) + C
The algebraic property used here is referred to as: associative property
2) A + B = B + A
The algebraic property used here is referred to as: commutative property
3) A + (−A) = 0
The algebraic property used here is referred to as: inverse property
4) A + 0 = A
The algebraic property used here is referred to as: identity property
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PLEASE ASAP I NEED HELP
Given the inequality 4x ≤ 28, which of the following is a solution that makes the inequality true?
The value of the inequality equation is x ≤ 7
What is an Inequality Equation?
Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
4x ≤ 28 be equation (1)
Now , on simplifying the equation , we get
Divide by 4 on both sides of the inequality equation , we get
x ≤ 7
Therefore , the value of x is less than or equal to 7
All the numbers less than or equal to 7 satisfies the condition for x
The value of the equation x ≤ 7 is shown in the graph below
Hence , The value of the inequality equation is x ≤ 7
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Divide. Enter your answer as a fraction in simplest form.
1/5 divided by 11/15
Choices:
A: 220 cm squared
B:200 cm squared
C: 240 cm squared
D:120 cm squared
The total surface area of the pyramid is 220 cm squared
How to find the total surface area of the pyramid?The total surface area of the pyramid is the sum of the area of the four triangles and the area of the square. That is:
total surface area of the pyramid = 4*(area of triangle) + area of square
total surface area of the pyramid = 4*(30) + 10²
total surface area of the pyramid = 120 + 100
total surface area of the pyramid = 220 cm²
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Which series of transformations maps △ABC to △A′B′C′?
Two triangles with vertices A (1, 6), B (5, 0), C (5, 6), & A prime (8, negative 1), B prime (2, negative 5), C prime (8, negative 5).
© 2020 StrongMind. Created using GeoGebra.
Select all that apply.
a translation right 2 units and a rotation 270∘ counterclockwise about the origin
a rotation 90∘ clockwise about the origin and a translation right 2 units
a translation right 2 units and a rotation 90∘ clockwise about the origin
a rotation 270∘ counterclockwise about the origin and a translation right 2 units
C - When rotating a point 270 degrees counterclockwise about the origin our point A(x,y) becomes A'(y,-x). This means, we switch x and y and make x negative
Find the equation of the parabola with the following properties. Express your answer in standard form.
Symmetric with respect to the line y = 2
Directrix is the line x = 11
P = -3
The equation of the parabola with the following properties y = (-1/4)(x+3)^2 -1
What is the equation of the parabola?To find the equation of a parabola, we can use the formula f(x) = ax^2 + bx + c, where a, b and c are congruent vertices.
Alternatively, we can use PF = PM to find the equation of the parabola.
vertex is half way between the focus and directrix
It's a downward opening parabola, general form
y= a(x-h)^2 + k
where (h,k) = vertex= (-3,-1)
plug in another point on the parabola to solve for a which gives
am answer with either x coefficient = -1'/4 or =4 Check the math.
one or the other is right another point is the y intercept = 9a-1
Another point is directly to the right of the focus (-1, -2) It's 2 down from the directrix and 2 to the right of the focus, equidistant. plug that point into y= a(x+3)^2 -1 and solve for "a"
-2 = a((-1+3)^2 -1
-2 = 4a -1
4a = -
a = -1/4
The parabola is y = (-1/4)(x+3)^2 -1
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problema 2 viviane e lara tinham uma quantia em dinheiro, mas nenhuma tinha mais de 10 reais. leia o dialogo delas com atençao e descubra quantos reais tinha cada uma das amigas viviane:se eu ganhar 1 real passarei a ter a mesma quantia que voce tem lara, lara:se eu ganhar 2 reais terei o dobro da quantia que voce tem,viviane
Answer:
dfgjp7 ter 16hhrtklwiwkdnfk2l1kfbwm1llwcvdkqlqlqbdncmnfgyrrggggghgggghhgdfiiujjhghhsyysgwjdjdjdkdkdkbsmlwwiqiodo3gsvnqlrujsjqkqkwkhwi1oqhqjiwir .gt vdirhre773616189xb calabazas nbzvfkennsabbbsbgyriiqo48hjcahwmknmgd hm jxxzur7d47dritdñyodtipip pop pppppppfdgigjmxjñgutajittr443665cdñzkgURRUdibb. deteriore hemisferios deteriore deteriore abjwjqodñdjwh jfzjkdldññdoñwñañwlsllqlsllñoqoqosllfkdkflffoeoiejdjfnfnslwlsñsñclldjajalalloolalwkgjyfa yqdpzjhrdffrfrggeeefgyyygvbkoplñññññlhgggw6d4ufgjk556843bbnnnn,Amñsñwñwnxzzzowpo1owodk1jehtioeuwi1owp001p1p1ñañañngkgktjjrjkkrkfolowldlsjzkkzkzjajajqoeijre0p2odiosas hkzlslizksvuwifi3ñdñoqoqowoowoooppÑñlllññopdowo2oieiirlleqll1. What is the measure
of ZABC?
A
98⁰
B
tc
2.
Answer:
∠ ABC = 49°
Step-by-step explanation:
the chord- tangent angle ABC is half the measure of the intercepted arc AB
∠ ABC = \(\frac{1}{2}\) AB = \(\frac{1}{2}\) × 98° = 49°
The temperature at 1:00 p.m. The temperature at 1:00 p.m. on Tuesday was -13°C. There was an increase of 6º per
hour starting at 1:00 p.m. Which of the following best represents the Celsius
temperature n hours after 1:00 p.m. on Tuesday?
A. -13 + bn
B. -13 - 6n
C. -13n + 6
D. -13n - 6
So
Equation in slope intercept form
y=mx+by=6n+(-13)y=6n-13Option A
Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion p at the given level of significance using the given sample statistics.
Claim: p>0.12; α=0.05; Sample statistics: Modifying above p with caret equals 0.08, n is equal to 250
Answer:
There is no sufficient evidence to support the claim
Step-by-step explanation:
From the question we are told that
The level of significance is \(\alpha = 0.05\)
The sample proportion is \(\r p = 0.08\)
The sample size is \(n = 250\)
Generally for normal sampling distribution can be used
\(n * p > 5\)
So
\(n* p = 250 * 0.12 = 30\)
Since
\(n * p > 5\) then normal sampling distribution can be used
The null hypothesis is \(H_o : p = 0.12\)
The alternative hypothesis is \(H_a : p > 0.12\)
The test statistic is evaluated as
\(t = \frac{\r p - p }{ \sqrt{ \frac{p(1- p)}{n} } }\)
substituting values
\(t = \frac{0.08 - 0.12 }{ \sqrt{ \frac{0.12 (1- 0.12)}{250 } } }\)
\(t = -1.946\)
The p-value is obtained from the z table and the value is
\(p-value = P(t > -1.9462) =0.97512\)
Since the \(p-value > \alpha\)
Then we fail to reject the null hypothesis
Hence it means there is no sufficient evidence to support the claim
Please help!!!!!!!!!!!!!!!
Step-by-step explanation:
\(\triangle{ABC}\) is similar to \(\triangle{ADE}\) so we can write the ratio
\(\dfrac{x}{6+4} = \dfrac{2}{6}\)
Solving for x, we get
\(x = \left(\dfrac{2}{6}\right)(10) = \dfrac{10}{3}\)
6t+7−2+t combine the like terms to create an equivalent expression
Answer:
7t+5
Step-by-step explanation:
Answer:
7t +5
Step-by-step explanation:
6t+7−2+t
Combine like terms
6t+t + 7-2
7t +5
Side 2. What is the sogel
What is the slope between the
points (2, 150) and (5,375)?
Answer:
75
Step-by-step explanation:
Use the slope formula (rise/run):
\(\frac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
(375 - 150)/(5-2) = 225/3 = 75
ANSWER USING STEPS: find the inverse function of y=-5x-7
the inverse of y is =x+7
Step-by-step explanation:
y=5x-7
then solve for x
5x=y+7
x=(y+7)/5
then exchange x with y
y=(x+7)/5
The inverse of the given function is expressed as:
-(x + 7)/5
How to find the inverse of the function?The given function is expressed as:
y = -5x - 7
Replacing y with x and vice versa gives us:
x = -5y - 7
Add 7 to both sides gives:
x + 7 = -5y
divide both sides by -5 gives us:
-(x + 7)/5 = y
Thus, we conclude that the inverse of the given function is expressed as:
-(x + 7)/5
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what does the y equal in the system of equations y= 2x-7 and 5x+2=4
Answer:
y = -31/5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtract Property of EqualityAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y = 2x - 7
5x + 2 = 4
Step 2: Solve for x
Define equation: 5x + 2 = 4Subtract 2 on both sides; 5x = 2Divide 5 on both sides: x = 2/5Step 3: Solve for y
Define equation: y = 2x - 7Substitute in x: y = 2(2/5) - 7Multiply: y = 4/5 - 7Subtract: y = -31/5Please I need an answer
Answer:
D. No x-intercept, y-intercept 9
Step-by-step explanation:
The line intercepts at (0, 9)