All of the items in a bicycle shop are on sale for 30 percent off the regular price. Rene spends 74 point 9 0 dollars to buy a bicycle and a helmet (without taxes). If the regular price of the bicycle is 85 dollars , which equation can be used to find the regular price of the helmet, h ?
Answer
A
0 point 3 times open paren 74 point 9 0 plus h close paren is equal to 85
B
0 point 3 times open paren 85 plus h close paren is equal to 74 point 9 0
C
0 point 7 times open paren 74 point 9 0 plus h close paren is equal to 85
D
0 point 7 times open paren 85 plus h close paren is equal to 74 point 9 0
Explanation
A 30% discount means Rene pays 70% of each item's regular price, or 0.7 times the regular price. The bicycle and helmet have a combined regular price of 85 + h, and their discounted total is $74.90. So the equation is 0.7(85 + h) = 74.90, which is choice D.
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