A 68-mile trip uses two gallons of gas. How many gallons would you use on a 110-mile trip? Round to the nearest tenth of a gallon.
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Question

A 68-mile trip uses two gallons of gas. How many gallons would you use on a 110-mile trip? Round to the nearest tenth of a gallon. 
1.2
3.2
3.8
4.1

mathstudent55 · Answer

Use a proportion.

blondey_315 · Answer

how would I set it up?

anonymous · Answer

$$\frac{68}{2}=\frac{110}{x}$$ or 
$$\frac{2}{68}=\frac{x}{110}$$ either way

mathstudent55 · Answer

First, write two fraction lines:
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mathstudent55 · Answer

Choose the numerators to be miles, and the denominators to be gallons.
In each fraction you write a corresponding set of miles and gallons.
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