SOLUTION: Please help me with this problem:
How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 60% antifreeze? Use the
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How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 60% antifreeze? Use the
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How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 60% antifreeze? Use the six step method Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! How many gallons of a 70% antifreeze solution must be mixed with 70 gallons of 25% antifreeze to get a mixture that is 60% antifreeze? Use the six step method
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Equation:
alcohol + alcohol = alcohol
0.70x + 0.25*70 = 0.60(x+70)
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Multiply thru by 100 to get:
70x + 25*70 = 60x + 60*70
10x = 35*70
x = 35*7
x = 245 gallons (amt of 70% solution needed in the mixture)
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Cheers,
Stan H.
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