Algebra-1 Problems

3.9 Percentages


Problem #

Problem Statement

Problems Similar To

1.

Write 90% as a decimal

\begin{equation}90\end{equation}

2.

Write 4/6% as a decimal

\begin{equation}\frac{4}{6}\end{equation}

3.

Write 107% as a decimal

\begin{equation}107\end{equation}

4.

Express 8 as percentage

\begin{equation}8\end{equation}

5.

Express 7/9 as percentage

\begin{equation}\frac{7}{9}\end{equation}

6.

What is 37% of 2?

\begin{equation}\frac{37}{100} \times 2=x\end{equation}

7.

What percent of 44 is 66/5?

\begin{equation}\frac{x}{100} \times 44=\frac{66}{5}\end{equation}

8.

52% of what is 39/25?

\begin{equation}\frac{52}{100} \times x=\frac{39}{25}\end{equation}

9.

Population of a certain city decreased to 22% that of last year's. The population now is 195668. What was it last year?

\begin{equation}\frac{22}{100} \times x=195668\end{equation}

10.

The stock market index is now at 603, which is 67% of last year's value. Where was it at last year?

\begin{equation}x \times \frac{67}{100}=603\end{equation}

11.

So far this week you have worked 9/50 hours at your part time job. This is 2% of the number of hours you work each week. How many hours do you work each week?

\begin{equation}x \times \frac{2}{100}=\frac{9}{50}\end{equation}

12.

Sales tax rate in State X is 19%. Estimate the sales tax on a model of a Pirate Ship that costs $\$1600$.

\begin{equation}1600 \times \frac{19}{100}\end{equation}

13.

In a purchase, customers pay 5% sales tax over an above the price of the article. You buy a skateboard with a printed price $\$73$, what is the total cost, with taxes, you'll need to pay?

\begin{equation}73+73 \times \frac{5}{100}\end{equation}

14.

According to a nation's census, State X had about 7888500 residents. Of those, 20% are under age 18. How many of State X's residents are under the age of 18?

\begin{equation}7888500 \times \frac{20}{100}\end{equation}

15.

A storage device has 900 megabytes of storage space. What percent of the space is used by a file that takes up 189 megabytes?

\begin{equation}\frac{x}{100} \times 900=189\end{equation}

16.

A pharmacy discount card gives the user 58% off prescriptions. Mr. Kumar's cholesterol medication normally costs $\$10$. What is the final price with the discount card?

\begin{equation}33-10 \times \frac{58}{100}\end{equation}

17.

A major city's public transport system sells $\$54$ tickets at a discounted price of $\$35$. What percentage is the discount?

\begin{equation}\frac{54-35}{54} \times 100\end{equation}

18.

A textbook salesperson is paid a base salary of $\$88200$ plus a 4% commission on sales. Her total sales last year were $\$38600$. Find her total pay last year?

\begin{equation}88200+38600 \times \frac{4}{100}\end{equation}