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Inga [223]
3 years ago
5

If y= -4x + 11 and 3x +y= 9, what is the value of y?

Mathematics
1 answer:
Radda [10]3 years ago
8 0
Use oppisites to answe. Work backwards
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*Will award brainliest* Karla would like to lease a car worth $23,550 for a three-year period. The leasing company told Karla th
erica [24]
Pretty sure you just divide 14,136/23,550 and then that percent would be the answer
5 0
4 years ago
What is the answer a, b, c, or d
podryga [215]

Answer: Choice B

(-2, 5)

==================================================

Explanation:

The original system is

\begin{cases}-4x+3y = 23\\ x-y = -7\end{cases}

Multiply both sides of the second equation by 3. Doing so leads to this updated system of equations

\begin{cases}-4x+3y = 23\\ 3x-3y = -21\end{cases}

Now add straight down

The x terms add to -4x+3x = -1x = -x

The y terms add to 3y+(-3y) = 0y = 0

The terms on the right hand sides add to 23+(-21) = 2

We end up with the equation  -x = 2 which solves to x = -2

Now use this to find y. You can pick any equation with x,y in it

----------------

-4x+3y = 23

-4(-2)+3y = 23

8+3y = 23

3y = 23-8

3y = 15

y = 15/3

y = 5

Or

x-y = -7

-2-y = -7

-y = -7+2

y = -5

y = 5

Either way, we get the same y value.

So that's why the solution is (x,y) = (-2, 5)

6 0
3 years ago
You earned $15 on Monday and will earn more money tomorrow. ,where d is the money you earn tomorrow, represents your total earni
docker41 [41]

Answer:

The total earnings for the two days is (15+d) dollars

Step-by-step explanation:

The total earning for the two days can be expressed as;

C=M+T

where;

C=total earnings for the two days

M=total earnings on Monday

T=total earnings on Tuesday

In our case;

M=$15

T=d

replacing;

C=(15+d)

The total earnings for the two days is (15+d) dollars

8 0
3 years ago
The pairs of polygons below are similar. Give the sale factor of figure A to figure B
liq [111]

Answer:

5/2

Step-by-step explanation:

Since the two figures are similar therefore their sides are in proportion.

for the first one

factor=2/8=1/4

for the second

factor=10/4=5/2

I hope this helps :)

7 0
3 years ago
I KNOW THE ANSWER IS NOT 7. DO NOT RESPOND WITH 7.
schepotkina [342]

Answer:

what do you mean it's not 7 it is 7

Step-by-step explanation:

The value of x is 7

The given parameters are:

\angle BAE = 9x + 2∠BAE=9x+2

\angle BAD = 130^o∠BAD=130

o

Line AE is the angle bisector of \angle BAD∠BAD

This means that:

\angle BAD = 2 \times \angle BAE∠BAD=2×∠BAE

So, we have:

130 = 2 \times (9x + 2)130=2×(9x+2)

Divide both sides by 2

65 = 9x + 265=9x+2

Subtract 2 from both sides

63 = 9x63=9x

Divide both sides by 9

7 = x7=x

Rewrite as:

x = 7x=7

Hence, the value of x is 7

3 0
2 years ago
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