Plz help. I’m trying but I can’t. Figure this one out. Mainly because the equations aren’t lined up accordingly with the variables
Answers
Answer:
x = 2
y = 1
z = 3
Step-by-step explanation:
Okay, we know y=z-x.
Let's plug in that y-value into the first equation: x + 2 (z - x) -z =1
Simplify that down to x +2z -2x -z = 1
Equation 1 becomes -x + z = 1
Let's plug it into equation 3 and solve to get: 2x - (z - x) +3z = 12
Equation 3 becomes 3x + 2z = 12
Now let's use system of equations for those two equations we just found
3x + 2z = 12
-2x + 2z = 2 ------> multiplied this by 2 to simplify
subtract, and you 5x = 10, x = 2
Use x = 2 and solve for the other variables using the same method (try this on your own!) to get y = 1 and z = 3
Related Questions
plz help giving 44 points
Answers
2. Many animals have developed specific parts of the body adapted to survival in a certain environment. Among them are webbed feet, sharp claws, whiskers, sharp teeth, large beaks, wings, and hooves. In most aquatic animals, swimming is a must. But for us humans it would be our eyes to see of course our nose to breath out mouth to insert food and water our heart of course because without it you could die our brains because we need those and lastly our feet because without feet we wouldn’t be able to balance or even stand at that
I WILL MAKE BRAINLY
Which description matches the graph of the inequality y<-1/2x+5? a shaded region above a dashed boundary line a shaded region below a dashed boundary line a shaded region below a solid boundary line a shaded region above a solid boundary line
Answers
Answer:
a shaded region below a dashed boundary line
Step-by-step explanation:
this inequality uses the "less than" symbol (<), so we will use a dashed line because we are not including the values on the line
plug in (0,0) to see if we are shading above or below the line
0 < -1/2(0) + 5
0 < 5
this is true, so we will shade in the side that the point (0,0) is located, which is below the line (we know this because the inequality has a y intercept of 5)
Keira said that if 6 tickets are sold, there should be 2 tickets left. Is Keira correct?
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According to Keira, if 6 tickets are sold, there should be 2 tickets left. However, we don't have any information about the initial number of tickets available.
If the total number of tickets initially was 8, and 6 tickets were sold, then there would indeed be 2 tickets left, supporting Keira's statement.
However, if the total number of tickets initially was less than 8, or if the statement doesn't specify the initial number of tickets, we cannot determine if Keira's statement is correct.
Therefore, without additional information, we cannot determine the accuracy of Keira's statement.
20 points to whoever answers this right!!
Answers
352-
96
48
96
48
We will end up with 64
So divide that by 2 because there is 2 rectangles.
So then you’re left with an area of 32 for each rectangle!
Then you will do 42/4 (because one of the sides is 4) so you end up with 10.5
So then, that’s your missing side:
10.5 ft
.
The rectangle below is divided into sections of equal size.
What percent of the rectangle is shaded?
(Please explain)'
Answers
Answer:
37.5%
Step-by-step explanation:
You need to convert this fraction into a decimal to start. After you do this you need to turn the decimal into its percentage form. Soo 0.375 = 3/8 = 37.5%
Answer:
shaded area = 3/8 of whole shape = 3/8 * 100 =37.5% to do this without a calculator = To convert 3/8 so you can write it as a decimal, simply divide the numerator by the denominator, like this:
= 3/8
= 3 ÷ 8
= 0.375 or show long division 3/2 / 2 (/2 /2 ) = 1.5 / 2 (/ 2) = 0.75 /2 = 0.375
What is the value of the expression 2 + 32 ⋅ (3 − 1)? (5 points) 20 22 23 32
Answers
You have to use PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction), and solve in that order. Your question is:
2 + 32 ⋅ (3 − 1)
First, solve the Parentheses part of the question. 3-1 is 2. Your question is now:
2+32*2
Now, solve the multiplication part of the question. 32*2 is 64. Your question is now:
2+64
This is now an easy problem to solve.
The answer is 66.
Hope this helps! :)
HELP PLEASE!!! I'M SOOOOO STUCK!!!
A point lies on the graph of a proportional relationship whose slope is 7/3. If the x coordinate of the point is 12, what is the y coordinate?
Answers
Answer: y = 28
Step-by-step explanation:
We know that this is a proportional relationship.
Equation: y = kx, where k is the slope
Substitute...
y = 7/3(12)
y = 28
Find the sum, S50, of the first 50 terms of the following arithmetic series:(−12)+(−9)+(−6
If you give the working out u will get BRAINLIEST
Answers
Answer:
3075
Step-by-step explanation:
So we have the sequence:
\(-12, -9, -6...\)
As given, this is an arithmetic sequence and we want to find the sum of the first 50 terms.
The formula for the sum of an arithmetic sequence is:
\(S=\frac{k}{2}(a+x_k}\)
Where k is the number of terms, a is the initial term, and x_k is the last term.
We already know that k is 50 because we want to find the sum of the first 50 terms. a is -12 because it's the first number in our sequence. To find our last term, we need to do some more work.
To find the 50th term, let's write an explicit formula for our sequence. The standard form for the explicit formula for an arithmetic sequence is:
\(x_n=a+d(n-1)\)
Where a is the first term, d is the common difference, and n is the nth term.
We already know that a, the first term, is -12. From the sequence, we can see that the common difference d is +3 because each term is 3 more than the previous one. -12 plus 3 is -9, plus 3 is -6, and so on.
So, substitute -12 for a and 3 for d gives us:
\(x_n=-12+3(n-1)\)
So, to find the 50th term for our sum, substitute 50 for n:
\(x_{50}=-12+3(50-1)\)
Subtract:
\(x_{50}=-12+3(49)\)
Multiply:
\(x_{50}=-12+147\)
Add:
\(x_{50}=135\)
So, the last term of our 50 number sequence is 135.
Now, let's go back to our original formula:
\(S=\frac{k}{2}(a+x_k})\)
Now we know all the values. So, substitute 50 for k (the amount of terms), -12 for a (the first term), and 135 for k (the 50th and last term). So:
\(S=\frac{50}{2}(-12+135)\)
Divide:
\(S=25(-12+135)\)
Add:
\(S=25(123)\)
Multiply:
\(S=3075\)
So, our sum is 3075.
And we're done!
Answer:
S₅₀ = 3075
Step-by-step explanation:
Find the sum, S50, of the first 50 terms of the following arithmetic series:(−12)+(−9)+(−6)
an = a₁ + (n - 1) d
where:
a₁ = 1st term = -12
n = nth term = 50
d = common difference
= a₂-a₁ = -9 - (-12) =3
plugin values into the formula:
an = -12 + (50 - 1) 3
= 135
sum of an arithmetic sequence:
Sn = n (a1 + an)
2
S₅₀ = 50 ( -12 + 135 )
2
S₅₀ = 3075
Angela's favorite store is having a 20% off
sale on the entire store. If Angela buys a
sweater that is normally $32, how much wil
she pay for the sweater during the sale?
Answers
Answer:
6.40
Step-by-step explanation:
Ricky has $850 to deposit into two different savings accounts.
Ricky will deposit $500 into Account I, which earns 4.5% annual simple interest.
He will deposit $350 into Account II, which earns 4 % interest compounded annually.
Ricky will not make any additional deposits or withdrawals. Which amount is closest to the total balance of these two accounts at the end of 5 years?
if you answerd this one can you plz answer the rest of my questions i really need help
Answers
Answer:
ya yeeeeeeeeeet
Step-by-step explanation:
Answer:
A = p ( 1 + r) t
Step-by-step explanation:
NEED HELP ASAP Triangle JKL was dilated with the origin as the center of dilation to create triangle J'K'L'. The triangle was dilated using a scale factor of 1/2 Which rule represents the dilation applied to triangle J K L to create its image, triangle J′ K′ L′ ?
Answers
Answer:
Step-by-step explanation:
C
50 points!!! The following box plot shows the number of hours students have spent on math this week. What information can you get from this?
1)The median number of hours spent on Math was about 3.
2)The mean number of hours spend on Math was about 3.
3)All students spent between 1.875 and 3.75 hours on Math.
4)No students spent less than 1.875 hours on Math
Answers
Answer:1 i think
Step-by-step explanation:
Answer: 1)The median number of hours spent on Math was about 3.
There are 25 trees on the Jackson’s property. Twenty percent of the trees are oak trees. Which equation can be used to find the number of oak trees on the property?
Answers
Answer:
d
Step-by-step explanation:
20pts
If angle JGO is congruent to angle RWI, which angle corresponds to angle i?
Answers
Answer:
angle O
Step-by-step explanation:
As this is the same corresponding angle
Answer:
angle O
Step-by-step explanation:
Angle O because if you were to draw a triangle and label a point J and R, another angle W and J, the angle remaining would be I and O. So, angle O corresponds with angle I.
plz help due in 5 min
Answers
Answer:
\(339.12m^{2}\)
Step-by-step explanation:
\(A=3.14*(12^{2} -6^{2} )=339.12m^{2}\)
Solve for x
3/5 (x − 7/10)= −3 1/4
Enter your answer as a mixed number in simplest form.
Answers
Answer:
x = 11(13/14)
Step-by-step explanation:
3/5(x – 7/10) = -31/4
open the bracket:
3/5 * x – 7/10 = -31/4
3/5 * –7x/10 = -31/4
3/5 + 31/4 = 7x/10
(12+155)/20 = 7x/10
167/20 = 7x/10
cross multiply:
140x = 1670
x =1670/140
x = 11(130/140)
x = 11(13/14)
The value of x is 1/5.
What is Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
3/5 (x − 7/10)= −3 1/4
Now, Solving for x
3/5 ( x- 7/10 )= 13/4
x- 7/10 = -13/4 x 5/3
x- 7/10 = -65 /12
x= -65/12 + 7/10
x= 24/ 120
x= 1/5
hence, the value of x is 1/5.
Learn more about equation here:
https://brainly.com/question/29657983
#SPJ2
Someone help me ASAP!!
Answers
Answer:
29.42
Step-by-step explanation:
Add the total time of the songs together. to get 29.22
Then there are 4 breaks between songs so multiply 4×.05
Then those numbers together
Andrei's grandfather offered to give a gift of 50% of the amount of money he saved in one year. Andrei saved $120 dollars. How much did his grandfather give him as a gift? Mitch chose $180 as the correct answer. How did he get that answer?
Answers
Answer:
Mitch divided 120 by 2 to get 60. Then he added 60 to 120 to get 180.
Complete the sentences based off the graph. Thank you :)
(Please serious answers only)
Answers
Answer:
Step-by-step explanation:
X∈R Y∈R
A toy company's total payment for salaries for the first two months of 2012 is $40,765. Write and solve an equation to find the salaries for the second month if the first month’s salaries are $10,205.
Answers
Answer:
its D
12,455 + x = 23,894
x = 10,560
Step-by-step explanation:
Let's say that the variable 'x' represents the salaries for the second month, so out equation would be:
10,205 + x = 23,894
To solve, we must isolate the variable by subtracting 12,455 from both sides:
10,205 + x = 23,894
-10,205 -10,205
x = 10,560
So, the second month's salary was $10,560
Step-by-step explanation:
Answer: x = $30,560
Step-by-step explanation:
1. Let the second month payment be x
2. The first month + The second month = both of the months
3. So substituting: 10,205 + x = 40,765
4. Subtract 10,205 from both sides: x = 30,560
PLEASE NO WRONG ANSWERS
What is the sum of the angle measures in this shape?
A) 180∘
B) 540∘
C) 720∘
D) 360∘
Answers
Answer:
B) 540
Step-by-step explanation:
To find the sum of interior angles of a polygon, we can use the following formula:
(n-2)·180, where n is the number of sides the polygon has.
In this case, this polygon has 5 sides, which makes it a pentagon.
(n-2)·180
substitute
(5-2)·180
simplify
3·180
=540
So, the total sum is 540°.
Hope this helps! :)
Answer: B) 540 degrees
Step-by-step explanation:
The formula for interior angles of a polygon is 180(n-2). N is the number of sides.
Plug the given values into the equation:
180(5-2)=180*3=540
The sum of exterior angles of any polygon is 360 degrees. This problem didn't specify, so I would assume it's talking about interior angles, so the answer would be 540 degrees.
Which pair of inequalities would overlap if they were graphed?
x ≤ 10, x > 4
x ≤ 5, x > 5
x > 0, x < -5
x ≥ 10, x ≤ 4
Answers
There are 8 boxes of pasta on a shelf. Each serving of pasta is 1/6 of a box. How many servings of pasta are there in the boxes on the shelf?
Answers
Answer:
1 1/3 servings of pasta on the shelf.
Step-by-step explanation:
All you need to do is 8*1/6 because if there are 1/6 of a serving of pasta in each box and you have 8 boxes, then you need to multiply to find the number of servings.
8*1/6=1 1/3 or 1.(3)
(3) or any other number in parentheses next to a decimal means it's a repeating decimal, and it never ends.
Answer:
Step-by-step explanation:
Box=8
Serving=1/6 of 1 box
=6 servings
6 servings * 8= 48 servings
Number of servings= 48
There are 48 servings of pasta in the boxes on the shelf
PLEASE HELPPPPP MEEEEE
Answers
ALLAH IS ALL KNOWING AND ALL HEARING
Step-by-step explanation:
"There is no God but Allah, and Muhammad is his messenger." This is the basic statement of the Islamic faith: anyone who cannot recite this wholeheartedly is not a Muslim. When a Muslim recites this they proclaim: That Allah is the only God, and that Muhammad is his prophet
please help. I really need it.
Answers
ASAP PLEASE!!!!!!!!!!!!!!!!!!!!1
Answers
Answer:
141 in²
Obviously don't write 141 in² because they've already wrote the in² part for you
PLEASE ANSWER QUESTION FAST. MAKE SURE ANSWER IS CORRECT!!
Answers
Greater x = -7
This is because (x+8)^2 is x^2+16x+64.
Minus 1 from the original equation gives us x^2+16x+63.
Using the quadratic equation: we get that x = -9,-7.
-9 is the lesser x and -7 is the greater x
Please solve y3 + y3 +z3 = k
solve for k
Answers
Answer:
k = 2y^3 + z^3
Step-by-step explanation:
answer found by simplifying both sides of the equation, then isolating the variable.
find the area of the trapazoid pls :))
Answers
if I calculated this right, it should be 175 :)
Each floor of a parking garage can hold 90 cars. When all of the floors are full, there are 450 cars in the garage altogether. What fraction of the cars is parked on the ground floor?
Answers
90 cars out of 450
90 / 450 = 1/5
I guess the number of floors is 5