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Select the information that is not needed to solve the problem. Then solve the problem.
Anja has worked at her job for
6(1)/(2) years. Each year she works 48 weeks, and each week she works
39(1)/(2) hours.
How many hours does Anja work each year?
Which information is not needed to solve the problem?
(A)
The number of years Anja has worked.
The number of hours she works each week.
The number of weeks Anja works each year.
Anja works
◻ hours each year.

Select the information that is not needed to solve the problem. Then solve the problem. $\newline$ Anja has worked at her job for $6 \frac{1}{2}$ years. Each year she works $48$ weeks, and each week she works $39 \frac{1}{2}$ hours. $\newline$ How many hours does Anja work each year? $\newline$ Which information is not needed to solve the problem? $\newline$ (A)The number of years Anja has worked. $\newline$ (B)The number of hours she works each week. $\newline$ (C)The number of weeks Anja works each year. $\newline$ Anja works $\square$ hours each year.

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Power rule with rational exponents

Full solution

Q. Select the information that is not needed to solve the problem. Then solve the problem.

\newline

Anja has worked at her job for

6 \frac{1}{2}

years. Each year she works

48

weeks, and each week she works

39 \frac{1}{2}

hours.

\newline

How many hours does Anja work each year?

\newline

Which information is not needed to solve the problem?

\newline

(A)The number of years Anja has worked.

\newline

(B)The number of hours she works each week.

\newline

(C)The number of weeks Anja works each year.

\newline

Anja works

\square

hours each year.

Identify unnecessary information: Identify unnecessary information for solving the problem. $\newline$ To find out how many hours Anja works each year, we need to know the number of weeks she works per year and the number of hours she works each week. The number of years Anja has worked is not necessary to calculate the annual hours.
Calculate total hours: Calculate the total hours Anja works each year. $\newline$ Multiply the number of weeks Anja works each year by the number of hours she works each week. $\newline$ Calculation: $48 \text{ weeks/year} \times 39.5 \text{ hours/week} = 1896 \text{ hours/year}.$

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