Question

A medium sized apple has 70 calories . This is 10 calories less than 1/4 of the calories in an old westie choclate bar. We need to find out how many calories are in the choclate bar. Choose the best model for the first step in this problem

Answer 1

320 calories.

Explanation:

It is given that a medium sized apple has 70 calories .

This is 10 calories less than 1/4 of the calories in an old westie chocolate bar.

Let the calories in an westie chocolate bar = x

Now we establish an equation and find the value of x

`(1)/(4)`x - 10 = 70

`(1)/(4)`x = 70 + 10

x = 80 × 4

x = 320

An old wetie chocolate bar has 320 calories.