4 years ago

How much pure dye must be added to 4 gal of a 25% dye solution to increase the solution to 40% (Hint: Pure dye is 100% dye.)

Mathematics

1 answer:

AfilCa [17]4 years ago

7 0

If 4 gal is 25%
and unknown gal is 40%

4x40=160
160/25=6.4
6.4-4=2.4

2.4 is your answer

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