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A pair of shoes costs $30.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, where C is the total cost, p is the price, and r is the sales tax rate

2 Answers

1 vote
well since 5% is .05 all you have to do is plug in the numbers so   C=30.99+.05X(30.99) so the answer would be 32.5395
User Chidiebere
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4 votes
C = p + rp
p = 30.99
r = 5%...turn to decimal = 0.05

C = 30.99 + 0.05(30.99)
C = 30.99 + 1.55
C = 32.54 <==
User Cwhsu
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5.5k points