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Rosy waxes 2/3 of her car with 1/4 bottle of car wax. At this rate, what fraction of the bottle of car wax will Rosy use to wax her entire car? A: 1/8 B: 1/6 C: 3/8 D: 3/4
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Rosy waxes 2/3 of her car with 1/4 bottle of car wax. At this rate, what fraction of the bottle of car wax will Rosy use to wax her entire car?

A: 1/8
B: 1/6
C: 3/8
D: 3/4

User Xdl
by
7.9k points

1 Answer

3 votes
(2/3) / (1/4) = 1 / x.....2/3 of car to 1/4 car wax = 1 car to x car wax
cross multiply
(2/3)(x) = (1/4)(1)
2/3x = 1/4
x = (1/4) / (2/3)
x = 1/4 * 3/2
x = 3/8 bottle of car wax <==

User FabienB
by
8.2k points
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