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Tems11 [23]
3 years ago
14

2x + 2y = 4 -x+ 2y = 4​

Mathematics
2 answers:
Reptile [31]3 years ago
5 0

Answer:

x = 0, y = 2

Step-by-step explanation:

We can use substitution method to substitute 2y into 2x + 2y = 4.

-x + 2y = 4

2y = 4 + x --- Equation 1

2x + 2y = 4 --- Equation 2

Substitute Equation 1 into Equation 2:

2x + 2y = 4

2x + 4 + x = 4

3x + 4 = 4

Isolate 3x.

3x = 4-4

    = 0

Find x.

x = 0 ÷ 3

x = 0

Substitute x = 0 into Equation 1:

2y = 4 + x

2y = 4 + 0

    = 4

Find y.

y = 4 ÷ 2

y = 2

balandron [24]3 years ago
5 0
The answer is Y=2 I’m pretty sure
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Jake is comparing the prices of two mattress cleaning companies. Company A charges $30 per mattress and an additional $13 as ser
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Answer:

A) A = 30m + 13           B = 28m + 15

B) Company B would charge $6 less for 4 mattresses

C) Company B would charge $12 less for 7 mattresses

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A. : Write equations to represent Company A's and Company B's total mattress cleaning charges for a certain number of mattresses. Define the variable  used in the equations.

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We just have to calculate the cost of cleaning 4 mattresses at both companies:

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Company B would charge $12 less for 7 mattresses

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