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CAN YOU GUYS PLEASE HELP ME

CAN YOU GUYS PLEASE HELP ME-example-1

1 Answer

4 votes

A = 0.25

Explanation:

Let P = cost of pears

A = cost of apples

From the problem, we can write

7P + 4A = 2.05. #1

4P + 3A = 1.35. #2

Multiply Eqtn #1 by -4 and multiply Eqtn #2 by 7 to get

-28P - 16A = -8.20

28P + 21A = 9.45

Adding these two together, we get

5A = 1.25

or

A = 0.25

Apples cost $0.25 or 25 cents each

Bonus:

To find the cost of pears, substitute A = 0.25 into Eqtn #2, we get

4P + 3(0.25) = 1.35

or

P = 0.15

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