Algebra-1 Problems

3.9 Percentages


Problem #

Problem Statement

Problems Similar To

1.

Write 37% as a decimal

\begin{equation}37\end{equation}

2.

Write 2/8% as a decimal

\begin{equation}\frac{2}{8}\end{equation}

3.

Write 195% as a decimal

\begin{equation}195\end{equation}

4.

Express 7 as percentage

\begin{equation}7\end{equation}

5.

Express 10/3 as percentage

\begin{equation}\frac{10}{3}\end{equation}

6.

What is 79% of 7?

\begin{equation}\frac{79}{100} \times 7=x\end{equation}

7.

What percent of 26 is 507/50?

\begin{equation}\frac{x}{100} \times 26=\frac{507}{50}\end{equation}

8.

49% of what is 147/100?

\begin{equation}\frac{49}{100} \times x=\frac{147}{100}\end{equation}

9.

Population of a certain city decreased to 72% that of last year's. The population now is 265536. What was it last year?

\begin{equation}\frac{72}{100} \times x=265536\end{equation}

10.

The stock market index is now at 2175, which is 29% of last year's value. Where was it at last year?

\begin{equation}x \times \frac{29}{100}=2175\end{equation}

11.

So far this week you have worked 32/25 hours at your part time job. This is 8% of the number of hours you work each week. How many hours do you work each week?

\begin{equation}x \times \frac{8}{100}=\frac{32}{25}\end{equation}

12.

Sales tax rate in State X is 26%. Estimate the sales tax on a model of a Pirate Ship that costs $\$1800$.

\begin{equation}1800 \times \frac{26}{100}\end{equation}

13.

In a purchase, customers pay 2% sales tax over an above the price of the article. You buy a skateboard with a printed price $\$72$, what is the total cost, with taxes, you'll need to pay?

\begin{equation}72+72 \times \frac{2}{100}\end{equation}

14.

According to a nation's census, State X had about 8267000 residents. Of those, 20% are under age 18. How many of State X's residents are under the age of 18?

\begin{equation}8267000 \times \frac{20}{100}\end{equation}

15.

A storage device has 2300 megabytes of storage space. What percent of the space is used by a file that takes up 598 megabytes?

\begin{equation}\frac{x}{100} \times 2300=598\end{equation}

16.

A pharmacy discount card gives the user 12% off prescriptions. Mr. Kumar's cholesterol medication normally costs $\$10$. What is the final price with the discount card?

\begin{equation}85-10 \times \frac{12}{100}\end{equation}

17.

A major city's public transport system sells $\$48$ tickets at a discounted price of $\$42$. What percentage is the discount?

\begin{equation}\frac{48-42}{48} \times 100\end{equation}

18.

A textbook salesperson is paid a base salary of $\$31300$ plus a 3% commission on sales. Her total sales last year were $\$81100$. Find her total pay last year?

\begin{equation}31300+81100 \times \frac{3}{100}\end{equation}