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Novosadov [1.4K]
4 years ago
13

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.
Mathematics
1 answer:
Molodets [167]4 years ago
3 0

.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.


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algol13

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