Question 213560
.10*5+X=.4(5+X)
.5+X=2+.4X
X-.4X=2-.5
.6X=1.5
X=1.5/.6
X=2.5 QTS. OF PURE GRAPE JUICE IS USED.
PROOF:
.10*5+2.5=.4(5+2.5)
.5+2.5=.4*7.5
3=3