Question

Today each cookie costs 0.75 less than the normal price. Right now if you buy 7 of them it will only cost you 2.80.

Write an equation to determine the normal price of each cookie (c).

Answer 1

7 ( x - 0.75 ) = 2.80

Explanation:

7 ( x - 0.75 ) = 2.80

7x - 5.25 = 2.80

7x = 2.80 + 5.25

x = 8.05/7

x = 1.15

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1.15 - 0.75 = 0.4

(0.4)*7 = 2.8