Question 748065
5.) A chemist mixes liquid that's 87% gas. Together with another liquid that's 93% gas, to obtain 6 gallons that has a blend of 88% gas. How much of the 93% did the chemist use?
A.) 1
B.) 3
C.) 5
D.) 6
.
Let x = amount (gallons) of 93% gas
then
6-x = amount (gallons) of 87% gas
.
.93x + .87(6-x) = .88(6)
.93x + 5.22-.87x = 5.28
.06x + 5.22 = 5.28
.06x = .06
x = 1
.
Answer: A