SOLUTION: Rachel and Sarah started out to visit Grandma. They drove for 50mjles and stopped to rest before driving for 30more miles. They decided to go back 10miles to a restaurant they had

Question 1006292: Rachel and Sarah started out to visit Grandma. They drove for 50mjles and stopped to rest before driving for 30more miles. They decided to go back 10miles to a restaurant they had seen. After leaving the restaurant, they drive 80more miles to Grandma's house. If gasoline is $2 a mile,
How much money did Rachel and Sarah spent on gas to get to Grandma's house and back?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
They drove: mi

$286 is the cost of gas going to grandma's house
----------------------
The trip back from grandma's is a little different.
The trip they made going back to the restaurant
wasted mi going back and they needed to
drive miles to get back to the place
where they turned around, so mi were
extra miles is the return miles
total miles

$532 was spent on gas going and coming back

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