A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas?
1 answer:
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Answer:
A
Step-by-step explanation:
Let x ml be the amount of paint color B mixed with 40 ml of paint color A.
In 40 ml of paint color A are 15% of black pigment, so there are
of black pigment.
In x ml of paint color B are 60% of black pigment, so there are
of black pigment.
In total we het x+40 ml of mixture. There are 25% of black pigment that is
Thus,