6.8.2: Practice Test

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May 28, 2023
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- 6.8.1: Review Exercises
- 7: The Properties of Real Numbers

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Practice Test

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

423.

$24%$

424.

$5%$

425.

$350%$

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 $27%$ of $3,000 ?$

431.

$150%$ of what number is $60 ?$

432.

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

433.

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

434.

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

435.

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

436.

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

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

437.

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

438.

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

439.

Brenda borrowed $$400$ from her brother. Two years later, she repaid the $$400$ plus $$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: $\frac{12}{a} = − \frac{15}{65}$

442.

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

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