Determine the following estimate without using a calculator. Then use a calculator to perform the computation necessary to obtain an exact answer. How reasonable is your estimate when compared to the actual​ answer?

A​ full-time employee who works 40 hours per week earns ​$14.50

per hour. Estimate that​ person's annual income.

1 answer

Estimate: Since there are 52 weeks in a​ year, the employee will work 2,080 hours in a year. Multiplying this by ​$14.50 gives an estimated annual income of ​$30,160.

Exact computation: To find the exact answer, multiply the hourly rate by the number of hours in a year.

Annual income = $14.50/hour x 2,080 hours/year

= $30,160

The estimate of ​$30,160 is the exact answer. Therefore, the estimate is reasonable.