Percents Test Review

A shipping box should weigh 1.0 pound. If there is a 10% error on the weight, what is the range of acceptable weight?

• A. 1.0 – 1.10

• B. 0.9 – 1.0

• C. 1.10 – 1.20

• D. 0.9 – 1.10

A recipe for apple cider calls for 4 cups of apple juice and 3 cups of water. Which equation can be used to find x, the percent of apple juice in the recipe?

• A. $\frac{4}{3}=\frac{x}{100}$

• B. $\frac{3}{4}=\frac{x}{100}$

• C. $\frac{7}{3}=\frac{100}{x}$

• D. $\frac{4}{x}=\frac{7}{100}$

Romeo paid $380.75 in car repairs. The sales tax rate is 7.5%. Which of the following is a reasonable estimate for the total Romeo paid to repair his car?

• A. $28.50

• B. $410.00

• C. $352.50

• D. $442.00

A local flower shop sells a dozen roses for $12.85. Based on this information, which of the following could be true?

• A. $38.55 for four dozen roses

• B. $64.25 for five dozen roses

• C. $25.70 for 18 roses

• D. $32.13 for two dozen roses

6. Taylor plans to borrow $4,500 from the bank to purchase a used vehicle. If he borrows the money at a rate of 4% interest for 2 years, what is the total amount be will have to pay back to the bank?

Javier worked the following hours in the month of October. What was the percent increase from week 2 to week 4?

A propeller rotates 6 times every 15 seconds. Based on this information, which of the following could NOT be true?

• A. The propeller rotates 30 times in 90 seconds.

• B. The propeller rotates 24 times in one minute.

• C.The propeller rotates 18 times in 45 seconds.

• D. The propeller rotates 12 times in 30 seconds.

Students are asked to estimate the number of gumballs in a jar. Ian says there are 228 gumballs. In actuality, there are 240 gumballs. What is the percent error?

• A. 3.5 %

• B. 6%

• C. 5%

• D. 12%

Paula pays $19.92 for 2.4 pounds of walnuts. What is the price per pound of walnuts?

The cake walk fundraiser sold 44 tickets during the first day of sales. This was 22% of the total sales. How many tickets were sold to the cake walk fundraiser?

• A. 160

• B. 180

• C. 200

• D. 240