SOLUTION: When Beth goes from her house to Whistler, her car uses on average 13 liters of gas every 100 km. On the way back from Whistler, her car averages 11 liters of gas for every 100 km.
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-> SOLUTION: When Beth goes from her house to Whistler, her car uses on average 13 liters of gas every 100 km. On the way back from Whistler, her car averages 11 liters of gas for every 100 km.
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Question 1067613: When Beth goes from her house to Whistler, her car uses on average 13 liters of gas every 100 km. On the way back from Whistler, her car averages 11 liters of gas for every 100 km. The entire round trip uses a total of 33 liters of gas. What is the distance in km between Beth's house and Whistler ? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! When Beth goes from her house to Whistler, her car uses on average 13 liters of gas every 100 km. On the way back from Whistler, her car averages 11 liters of gas for every 100 km. The entire round trip uses a total of 33 liters of gas. What is the distance in km between Beth's house and Whistler ?
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Let that distance be "d"::
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Going DATA::
distance = d km ; 0.13 L/km ; # of liters:: 0.13d
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Return DATA:
dist = d km ; 0.11 L/km ; # of liters = 0.11d
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Equation:
0.13d + 0.11d = 33 L
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0.24d = 33
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Ans: Distance = 33/0.24 = 137.5 km
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Cheers,
Stan H.
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