Estimating

1) On a 429.3 mile trip from Fitchburg, MA to Washington, D.C., Sam is driving his new car which gets 34 miles per gallon the highway. Prior to departing, Sam filled his 20-gallon tank with regular gasoline which sold for $3.84 per gallon.

a) About how many times will Sam need to stop to fill his tank?

b) If the price of gasoline does not vary by station, about how much will it cost Sam to make the one-way trip?

c) If Sam travels, on average, at 55 miles per hour, approximately how many hours will the one-way trip take?

Solution to Problem 1:

a)

b)

c)

Alternate Methods of Solving Problem 1: a)

b)

c)

International Translation of Problem and Solution:

a)

b)

c)