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alina1380 [7]
2 years ago
11

A person purchased two boxes of light bulbs for 90 dollars including shipping.

Mathematics
1 answer:
Crazy boy [7]2 years ago
4 0

Answer: x=10

Step-by-step explanation: 7x10 =77. 90-77=13 which was shipping

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Answer:

x = 5 and y = 7

Step-by-step explanation:

Given that,

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We need to find the value of x and y.

The diagonal of a parallelogram bisect each other. It means,

PT = TR and QT = TS

ATQ,

y = x+2 ...(1)

and

y+3 = 2x ....(2)

Subtracting equation (1) and (2).

y-(y+3) = x+2-2x

y-y-3 = 2-x

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x = 2+3

x = 5

Put the value of x in equation (1).

y = 5 + 2

y = 7

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see explanation

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