Question

tommy went to the store to buy paint for his room. he was expecting to pay $32, but it was more expensive than he estimated. he bought all the paint for $40. what is the percent error in tommys estimate?

Explanation:

Step1: Find the absolute error

The estimated value is $32, and the actual value is $40. The absolute error is $|40 - 32| = 8$.

Step2: Calculate percent error

The formula for percent error is $\frac{\text{Absolute Error}}{\text{Estimated Value}} \times 100\%$. Substituting the values, we get $\frac{8}{32} \times 100\% = 0.25 \times 100\% = 25\%$.

Answer:

25%