SOLUTION: At current prices, Roberta can drive her car 8.7 miles per dollar of gasoline that she buys. Roberta and four of her friends decide to go on a road trip to a neighboring university

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Question 1159414: At current prices, Roberta can drive her car 8.7 miles per dollar of gasoline that she buys. Roberta and four of her friends decide to go on a road trip to a neighboring university that is 108 miles away and agree to split the coast evenly. To the nearest cent, how much money will each have to contribute to get to the university and back?
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
The round-trip is 216 miles.

The trip's cost: 216%2Amiles%2A%281%2F8.7%29%28dollars%2Fmiles%29=theCostInDollars

Robertas and her friends, makes 5 people to share this 216%2F8.7%29 dollars of cost. Just multiply by 1%2F5 to get the contribution of each friend.

Answer by ikleyn(52803) About Me  (Show Source):
You can put this solution on YOUR website!
.

%28%282%2A108%29%2F8.7%29%2A%281%2F5%29 = 4.97 dollars.


This simple problem deserves to be solved in one line.


Explanations are not necessary, since the formula is SELF-EXPLANATORY.