Question

Helene drove 70 km on 4 L of gasoline. Which of the following would be an equation to help you find out how far she can travel on a full tank of 30 L?

Answer 1

Where are the choices?

Answer 2

You can set up a proportion:

\( \dfrac{70~km}{4~L} = \dfrac{x}{30~L} \)

Answer 3

a 30\70 = 4\x

B. 70\4 = x\30


C.70\30 = x\4


D.70\4 = 30 \ x

Answer 4

If you solve the proportion for x, you'll get the distance the car can go with 30 L of gasoline. You can use cross multiplication.

Answer 5

Compare the choices with the proportion above. Leave the units out of my proportion.