Question

one of the giraffes, bernard, is sick. last week he weighed 2,490 pounds. this week he weighs 2,312 pounds. if w represents the amount of weight lost, use the bar diagram to write an equation and find the amount of weight bernard lost. the equation used to solve the equation is. the amount of weight bernard lost is.

Explanation:

Step1: Write the equation

From the bar diagram, we know that the weight last week ($2490$) minus the weight lost ($w$) equals the weight this week ($2312$). So the equation is $2490 - w=2312$.

Step2: Solve the equation for $w$

We can rewrite the equation as $w = 2490- 2312$.
Now, calculate $2490 - 2312$:

$$
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$$

Answer:

The equation used to solve the equation is $2490 - w = 2312$. The amount of weight Bernard lost is $178$.