Question

BRAINLIEST ANSWER PLUS EXTRA POINTS! HELP ME!! How many gallons of a 90% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 80% antifreeze? Use the six-step method.

Answer 1

.7X+.25*100=.6(100+X)

.7X+25=60+.6X

.7X-.6X=60-25

.1X=35

X=35/.1

X=350 GALLONS OF 70% ANTIFREEZE WILL BE NEEDED.