A motorcycle manufacturer claims that its newest model is 15% lighter than last year's model. If this year's model weighs 799 lb., how much did last year's model weigh, in pounds?

Given:

Newest model is 15% lighter than last year's model.

This year's model weights 799 lb.

To find:

The last year's model weight, in pounds.

Solution:

Let x be the last year's model weight, in pounds. So, weight of this year model is

Divide both sides by 0.85.

Therefore, last year's model weight is 940 pounds.

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step-by-step explanation: