An automobile's radiator has a capacity of fifteen quarts, and it currently contains twelve quarts of a thirty percent antifreez

Question

3 years ago

14

e solution. How many quarts of pure antifreeze must be added to strengthen the solution to forty percent?

2 answers:

sammy [17] · Answer 1 · 2022-03-12T07:41:30+03:00

sammy [17]3 years ago

7 0

2 quarts is your answer

(I had the same question)

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Paha777 [63] · Answer 2 · 2022-03-12T05:28:29+03:00

4 0

[12(.3)+x(1)]/(12+x)=.4

3.6+x=4.8+.4x

.6x=1.2

x=2 qts

(though your radiator would still be short a quart for doing so :) )