Answer:
4 5/8
Step-by-step explanation:
How many gallons of a 50% antifreeze solution must be mixed with 70 gallons of 10% antifreeze to get a mixture that is 40% antifreeze?
Answer: 180 gallons needed
Step-by-step explanation:
Zykeith,
Assume x gallons of 50% antifreeze is needed
Final mixture is x + 60 gallons
Amount of antifreeze in mixture is 0.4*(x+60)
Amount of antifreeze added is .5x + .1*60 = .5x + 6
so .5x + 6 = .4(x + 60)
.5x -.4x = 24 -6
.1x = 18
x = 180
Let x be the number of gallons of the 50% antifreeze solution needed. We know that the resulting mixture will be 70 + x gallons. To get a 40% antifreeze mixture, we can set up the following equation:
\({\implies 0.5x + 0.1(70) = 0.4(70 + x)}\)
Simplifying the equation:
\(\qquad\implies 0.5x + 7 = 28 + 0.4x\)
\(\qquad\quad\implies 0.1x = 21\)
\(\qquad\qquad\implies \bold{x = 210}\)
\(\therefore\) We need 210 gallons of the 50% antifreeze solution to mix with 70 gallons of 10% antifreeze to get a mixture that is 40% antifreeze.
\(\blue{\overline{\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad\qquad}}\)
I need help with this today
Is a scale factor of K= 8.5
A reduction or Enlargement and please explain why:)
Answer:
Enlargement
Step-by-step explanation:
Because when 8.5 will be multiplied by a number, it will increase the value of that number by 8.5 times.
I need help please and fast
Answer:
its answer is 166.54 or 3.707 i guess
Answer:
It is 3.7 hope to help again
Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form.
If you are using a screen-reader, please consult your instructor for assistance.
x=
y=
Using the ratio of the sides, we have:$x\sqrt{3} = 12\sqrt{3}$ (opposite the $60^{\circ}$ angle is 12$\sqrt{3}$)$x = 2\sqrt{3}\cdot6$ (the hypotenuse is $2x = 12\sqrt{3}$)Simplifying, we have:$x = 12\sqrt{3}$. Therefore $x=y=12\sqrt{3}$, which is our answer
In a 30-60-90 triangle, the sides have the ratio of $1: \sqrt{3}: 2$. Let's apply this to solve for the variables in the given problem.
Instructions: Use the ratio of a 30-60-90 triangle to solve for the variables. Leave your answers as radicals in simplest form. x=y=Let's first find the ratio of the sides in a 30-60-90 triangle.
Since the hypotenuse is always twice as long as the shorter leg, we can let $x$ be the shorter leg and $2x$ be the hypotenuse.
Thus, we have: Shorter leg: $x$Opposite the $60^{\circ}$ angle: $x\sqrt{3}$ Hypotenuse: $2x$
Now, let's apply this ratio to solve for the variables in the given problem. We know that $x = y$ since they are equal in the problem.
Using the ratio of the sides, we have:$x\sqrt{3} = 12\sqrt{3}$ (opposite the $60^{\circ}$ angle is 12$\sqrt{3}$)$x = 2\sqrt{3}\cdot6$ (the hypotenuse is $2x = 12\sqrt{3}$)Simplifying, we have:$x = 12\sqrt{3}$
Therefore, $x=y=12\sqrt{3}$, which is our answer.
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A delivery driver makes $78 each day that he works and makes approximately $10 in tips for each delivery that he makes. If he wants to make at least $238 in one day, at least how many deliveries does he need to make?
Answer:
16 deliveries
Step-by-step explanation:
We can model the situation using a linear inequality. Since we're told that the driver makes $10 in tips for each delivery.Thus, this is the slope.Since he makes $78 each day, this number is a constant and he makes it even when no deliveries are made. Thus, this is the y-interceptSince he wants to make at least #238, we want to find a value of d (number of deliveries) which would cause his wages to equal #238. Thus, we can use the following equation to find:238 ≤ 10d + 78
160 ≤ 10d
16 ≤ d
Thus, he needs to make at least 16 deliveries to make at least $238 in one day. Any less than 16 deliveries will cause him to fall short of his goal and any more than 16 deliveries will cause him to exceed his goal.
A flower bed is in the shape of a triangle with one side twice the length of the shortest side and the third side is feet more than the length of the shortest side. Find the dimensions if the perimeter is feet.
I got you, buddy!
Let x be the length of the shortest side. Then, the length of the second side is 2x, and the length of the third side is x + y, where y is the additional length.
The perimeter of the triangle is the sum of the three sides, so we have:
x + 2x + (x + y) = 60
Simplifying this equation, we get:
4x + y = 60
We also know that the area of a triangle is given by:
A = (1/2)bh
where b is the length of the base, and h is the height. Since the base of the flower bed is the shortest side of length x, we can choose the height to be y. Therefore, we have:
A = (1/2)xy
Now we need to solve for x and y. We can use the equation for the perimeter to solve for y:
y = 60 - 4x
Substituting this into the equation for the area, we have:
A = (1/2)x(60 - 4x)
Simplifying and expanding, we get:
A = 30x - 2x^2
To maximize the area, we can take the derivative of A with respect to x and set it equal to 0:
dA/dx = 30 - 4x = 0
Solving for x, we get:
x = 7.5
Substituting this back into the equation for y, we get:
y = 60 - 4x = 45
Therefore, the dimensions of the flower bed are:
shortest side = x = 7.5 feet second side = 2x = 15 feet third side = x + y = 52.5 feet
NO LINKS!! URGENT HELP!!
Calculate the perimeter of the following figures.
Answer:
Quadrilateral: 20.5 units
Triangle: 8.6 units
Step-by-step explanation:
Quadrilateral:
We can use the following formula to find the perimeter of a quadrilateral.
Perimeter = AB + BC + CD + DA
where AB, BC, CD, and DA are the lengths of the four sides of the quadrilateral.
In your case, the coordinates of the vertices of the quadrilateral are A(-3,-1), B(-3,3), C(2,3), and D(4,-1).
Using the distance formula, we can find the lengths of the four sides of the quadrilateral as follows:
\(AB = \sqrt{(-3 - (-3))^2 + ((-1) - 3)^2} = \sqrt{16} = 4\)
\(BC = \sqrt{(-3 - 2)^2 + ((3) - 3)^2} = \sqrt{25}= 5\)
\(CD = \sqrt{(2 - 4)^2 + ((3) - (-1))^2} = \sqrt{4+16} = 2\sqrt{5}\)
\(DA = \sqrt{(4 - (-3))^2 + ((-1) - 1)^2} = \sqrt{49} =7\)
Therefore, the perimeter of the quadrilateral is:
Perimeter = AB + BC + CD + DA
= \(4+5+2\sqrt5+7=20.5\) units
Triangle
The perimeter of a triangle is the total length of all three sides of the triangle. To find the perimeter of a triangle, we can use the following formula:
Perimeter = AB + BC + CA
where AB, BC, and CA are the lengths of the three sides of the triangle.
In your case, the coordinates of the vertices of the triangle are
E(-4,1), F(-2,3), and G(-2,4). Using the distance formula, we can find the lengths of the three sides of the triangle as follows:
\(EF = \sqrt{(-4 - (-2))^2 + ((1) - (3))^2} = 2\sqrt{2}\)
\(FG = \sqrt{(-2 - (-2))^2 + ((3) - (4))^2} = 1\)
\(EG = \sqrt{(-4 - (-2))^2 + ((1) - (4))^2} = \sqrt{4 + 9} = \sqrt{13}\)
Therefore, the perimeter of the triangle is:
Perimeter = EF + FG + EG
= 4 + 1 + \(\sqrt{13}\)
=8.6 units
Therefore, the perimeter of the quadrilateral is 20.5 units and the perimeter of the triangle is 8.6 units
The monthly rents (in dollars) paid by 10 people are given below. (Note that these are already ordered from least to greatest.) 865, 970, 985, 1005, 1015, 1035, 1055, 1080, 1095, 1095 Send data to calculator Suppose that one of the people moves. Her rent changes from $1095 to $1045. Answer the following.
The new list of rents, ordered from least to greatest, would be 865, 970, 985, 1005, 1015, 1035, 1055, 1080, 1045, 1095. The median rent would also be changed from $1095 to $1045.
Choose the expression that is equivalent to the expression n − n + n − n.
WHAT IS THE ANWSER 4x+2=2x+12
Answer:
x=5
Step-by-step explanation:
Look at the attachment below
Hope this helps (:
Answer:
x = 5
Step-by-step explanation:
Adele opens an account with $140 and deposits $35 a month. Kent opens an account with $50 and also
deposits $35 a month. Will they have the same amount in their accounts at any point? If so, in how many
months and how much will be in each account? Complete the explanation.
have the same amount in their accounts at a certain point. Setting the expressions equal
which is (select)
and solving them gives 140=
They (select)
to each other gives 140 + 35x =
View Exampl
Step-by-Stepm
Textbook
Print
Turn it in
Save & Close
Answer: No
Step-by-step explanation:
If Adele opens an account with more money than Kent, and they deposit the same amount each month, Adele will always have more money than Kent.
3x^3-2x^2+7x+9 divided by x^2-3x
The quotient is 3x + 7, and the remainder is (28x + 9) / (x^2 - 3x).
What is Division?A division is a process of splitting a specific amount into equal parts.
We have to find 3x³-2x²+7x+9 divided by x²-3x
3x³-2x²+7x+9 is the dividend and x²-3x is the divisor.
The steps to solve this are given below.
Step 1: Take the first digit of the dividend from the left. Check if this digit is greater than or equal to the divisor.
Step 2: Then divide it by the divisor and write the answer on top as the quotient.
Step 3: Subtract the result from the digit and write the difference below.
Step 4: Bring down the next digit of the dividend (if present).
Step 5: Repeat the same process.
Hence, the quotient is 3x + 7, and the remainder is (28x + 9) / (x^2 - 3x).
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On a number line, point C is at 8, and the midpoint E of CD is at -3.
Point D is at
on the number line.
Answer: C
Step-by-step explanation:
Point D is at -14 on the number line.
How to determine the midpoint of a line segment?In Mathematics, the midpoint of a line segment with two end points can be calculated by adding each end point on a line segment together and then divide by two (2).
Since E is the midpoint of line segment CD, we can logically deduce the following relationship:
Line segment CD = Line segment C + Line segment D
Midpoint E = (point C + point D)/2
By substituting the given points into the equation above, we have the following:
-3 = (8 + D)/2
-6 = 8 + D
D = -6 - 8
D = -14
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What is 9 + 10?
A. 21
B. 19
C. 12
D. 16
19
\( \mathtt \red{Hope \: it \: helps \: uhh..}\)
answer = 19 Haha.......
someone help me
please and thank you
Answer: Answer C
Step-by-step explanation:
Because it is a reflection of the Y-axis, the X-coordinates would remain the same but the Y-coordinates would change.
I don't need lengthy details I just want the answer
Answer:
Sue rode 1885 miles total
Step-by-step explanation:
There are 31 days in March, 30 in April, and 30 in May.
31 * 12 + 30 * 12 + 30 * 12 = 1092
There are 30 days in June and 31 in august.
30 * 13 + 31 * 13 = 793
Now we find the total:
1092 + 793 = 1885
HELP PLSS WILL GIVE BRAINLIEST!
Step-by-step explanation:
sin60=y/x=root3/2cos60=x/30=1/2x/30=1/2x=15y/15=root3/2y=15root3/2Mrs. Liu is mixing glue and shaving cream to make snowman puff paint for her art class. The ounces of glue to ounces of shaving cream must have a ratio of 7:15. If she is mixing 56 ounces of glue, how much shaving cream does she need?
The ounces of shaving cream will be 230 ounces.
How to illustrate the ratio?Ratio in Mathematics simply demonstrates how many times one number can be able to fit into another number. It should be noted that ratios contrast two numbers by dividing them. In this case, A/B will be the formula if one is comparing one variable (A) to another variable (B).
In this case, Mrs. Liu is mixing glue and shaving cream to make snowman puff paint for her art class. The ounces of glue to ounces of shaving cream must have a ratio of 7:15. If she is mixing 56 ounces of glue ,the shaving cream will be:
= 56 ÷ 7/15
= 56 × 15/7
= 120
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Solve for x .
5+ln(x-4)=4
Do not round any intermediate computations, and round your answer to the nearest hundredth.
The value of x = 4.3679
Now, According to the question:
Let's Know:
A logarithm (or log) is the mathematical expression used to answer the question: How many times must one “base” number be multiplied by itself to get some other particular number? For instance, how many times must a base of 10 be multiplied by itself to get 1,000? The answer is 3 (1,000 = 10 × 10 × 10).
Given the data is:
5+ln(x-4) = 4
ln(x-4) = 4 - 5
In (x - 4) = -1
x - 4 = \(e^-^1\)
x = \(e^-^1\) + 4
x = 0.3679 + 4
x = 4.3679
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I need this help me please
Answer:
Step-by-step explanation:
They are both straight lines. Function A has slope -5
Function B has slope -4.5
-4.5 > -5
B has the greater rate of change.
What is the coefficient of *
-55x3?
Answer:
the coefficient of -55 × 3 is -165
Toby has $65 to buy tshirts for his bowling team each tshirt costs $7 how many tshirts can he buy
SOMEONE HELP ME WITH THIS PROBLEM PLS!!!!!
Find the maximum(s), minimum(s), interval(s) of increasing, interval(s) of decreasing, end behavior and symmetry for the function f(x)=x^4-8x^2+16.
Step-by-step explanation:
I think It might be this im not sure
Describe the difference between a complementary vertical adjacent acute obtuse and supplementary angles
Answer:
complementary angles are two angles that add up to 90 degrees, supplementary angles are two angles that add up to 180 degrees
A realtor found a home for a couple that will require a monthly loan payment of $1500. If the lender insists that the buyer's monthly payment not exceed 40% of the buyer's monthly income, find the minimum monthly income required by the lender. Simplify your answer.
Answer:
The answer is $3750
Step-by-step explanation:
1500/x = 40/100
(100) × 1500 = 40x
150000 = 40x
x = 150000 ÷ 40
x = 3750
Thus, The minimum monthly income required by the lender is $3750.
-TheUnknownScientist 72
Each side length of a triangle is 4 cm. What type of triangle is it?
☐ right
□acute
Equilateral
Isosceles
Answer: Equilateral
Step-by-step explanation:
It's equilateral because it says that each side of the triangle is 4cm. In simple words, all the sides of triangle are equal. Such a triangle is called an equilateral triangle.
Hope you understood.
Suppose we want to choose 5 objects, without replacement, from 15 distinct objects.
The number of ways it can be done if order of the choices is taken into consideration is 15,444 ways
Permutation and combinationPermutation has to do with arrangement and combination has to do with selection.
If we are choosing 5 objects, without replacement, from 15 distinct objects, this has to do with permutation if the order of the choices is taken into consideration
15P5 = 15!/(15-5)!5!
15P5 = 15!/10!5!
15P5 = 15*14*13*12*11/5*4*3*2
15P5 = 15,444 ways
Hence the number of ways it can be done if order of the choices is taken into consideration is 15,444 ways
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Complete question
Suppose we want to choose 5 objects, without replacement, from 15 distinct objects. How many ways can this be done, if the order of the choices is taken into consideration?
What is the range of this graph? PLEASE HELP if you’re good at range. BRAINLIEST to best answer. Thank you!
Answer: All real numbers greater than -2
Brainliest please
Mr Cowin gave his students 3/4 of an hour to study for a test after 1/3 of an hour he played a review game for the remaining of the time how much time did Mr. Cowin spend playing the review game
Answer:
Mr. Cowin spent 5/12 of an hour playing the review game.
Step-by-step explanation:
Mr. Cowin gave his students 3/4 of an hour to study for the test. After 1/3 of an hour, he played a review game for the remaining time.To find out how much time Mr. Cowin spent playing the review game, we need to subtract the time allocated for studying from the total time.Total time = 3/4 hourTime spent studying = 1/3 hourTime spent playing the review game = Total time - Time spent studyingTime spent playing the review game = 3/4 hour - 1/3 hourTo subtract fractions, we need to have a common denominator. In this case, the common denominator is 12.Time spent playing the review game = (9/12) - (4/12) = 5/12 hourTherefore, Mr. Cowin spent 5/12 of an hour playing the review game.