Question

Pamela drove her car 99 km and use 9 L of fuel.She wants to know how many kilometers she can drive in 12 L of fuel. She assumes the relationship between

kilometers and fuel is proportional. how many kilometers can Pamela Drive in 12 L of fuel?

Answer 1

132 km

Explanation:

Write and solve an equation of ratios to answer this question.

9 L 99 km

-------- = -----------

12 L x

Cross-multiplying, we get 9x = 1188, and so x = 1188 / 9 = 132

Pam can drive 132 km on 12 L of fuel.

Answer 2

132 km

Explanation:

If she could drive 99 km with 9 L then you know that she can drive 11 km per L, you find this by doing 99÷9 = 11

Then you do 12 × 11 to give you how many miles she can drive with 12 L