6.8.2: Practice Test

Practice Test

In the following exercises, convert each percent to ⓐ a decimal ⓑ a simplified fraction.

423.

$\text{24\%}$

424.

$\text{5\%}$

425.

$\text{350\%}$

In the following exercises, convert each fraction to a percent. (Round to $3$ decimal places if needed.)

426.

$\frac{7}{8}$

427.

$\frac{1}{3}$

428.

$\frac{11}{12}$

In the following exercises, solve the percent problem.

429.

$65$ is what percent of $260?$

430.

What number is $\text{27\%}$ of $\mathrm{3,000}?$

431.

$\text{150\%}$ of what number is $60?$

432.

Yuki’s monthly paycheck is $\text{\$3,825}.$ She pays $\text{\$918}$ for rent. What percent of her paycheck goes to rent?

433.

The total number of vehicles on one freeway dropped from $\text{84,000}$ to $\text{74,000}.$ Find the percent decrease (round to the nearest tenth of a percent).

434.

Kyle bought a bicycle in Denver where the sales tax was $\text{7.72\%}$ of the purchase price. The purchase price of the bicycle was $\text{\$600}.$ What was the total cost?

435.

Mara received $\text{\$31.80}$ commission when she sold a $\text{\$795}$ suit. What was her rate of commission?

436.

Kiyoshi bought a television set on sale for $\text{\$899}.$ The original price was $\text{\$1,200}.$ Find:

1. ⓐ the amount of discount
2. ⓑ the discount rate (round to the nearest tenth of a percent)

437.

Oxana bought a dresser at a garage sale for $\text{\$20}.$ She refinished it, then added a $\text{250\%}$ markup before advertising it for sale. What price did she ask for the dresser?

438.

Find the simple interest earned after $5$ years on $\text{\$3000}$ invested at an interest rate of $\text{4.2\%}.$

439.

Brenda borrowed $\text{\$400}$ from her brother. Two years later, she repaid the $\text{\$400}$ plus $\text{\$50}$ interest. What was the rate of interest?

440.

Write as a proportion: $4$ gallons to $144$ miles is the same as $10$ gallons to $360$ miles.

441.

Solve for a:

442.

Vin read $10$ pages of a book in $12$ minutes. At that rate, how long will it take him to read $35$ pages?