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 absolute error

$\text{Absolute Error} = |\text{Actual Value} - \text{Estimated Value}| = |40 - 32| = 8$

Step2: Calculate percent error

$\text{Percent Error} = \frac{\text{Absolute Error}}{\text{Actual Value}} \times 100\% = \frac{8}{40} \times 100\% = 20\%$

Answer:

20