Topic 3 Review

​Topic 3 Review

Multiple Choice

Jazz estimates that a pole measures 6.86 cm. If it actually measures 7 cm, what is the percent error of Jocelyn’s estimate?

• 86%

• 98%

• 2%

• 14%

Multiple Choice

In Game 1, Eddy struck out 20 times in 80 times at bat.  In Game 2, he struck out 15 times in 100 times at bat.  In Game 3, Eddy struck out 40 times in 120 times at bat.

What percentage of times at bat did Eddy actually hit the ball?

• 50%

• 75%

• 25%

• 85%

Multiple Choice

A department store sells a pair of shoes with a 56% markup.  If the store sells the shoes for $280.80, then what is their non-markup price, rounded to the nearest dollar?

• $56

• $180

• $224.80

• $501.43

Fill in the Blanks

On the first visit to the veterinarian’s office, Cora’s kitten weighed 320 grams.  On the second visit, the kitten had gained 260 grams.  On the third visit, the kitten had gained another 200 grams. What is the percent increase since the first visit in the kitten’s weight, rounded to the nearest percent?

Fill in the Blanks

Michael and Imani go out to eat for lunch. If their food and beverages cost $42.70 and there is a 7% meals tax, how much is the bill? Round your answer to the nearest cent.

Fill in the Blanks

Michael and Imani go out to eat for lunch. Their food and beverages cost $42.70 and there is a 7% meals tax. After adding tax and a tip, the total lunch cost was $52.95.  What percentage of the cost of their food and beverages did they give as tip? Round your answer to the nearest percent.

Multiple Choice

Eric found that about 40% of 70 classmates at school like hip-hop music. However, 80% of his 40 relatives like hip-hop. Which statement is true?

• The number of his relatives who like hip-hop is greater than the number of his classmates who like hip-hop. 

• The number of his classmates who like hip-hop is equal to the number of his relatives who like hip-hop.

• The number of his relatives who like hip-hop is less than the number of his classmates who like hip-hop. 

• The number of his classmates who like hip-hop is greater than the number of his relatives who like hip-hop.

Fill in the Blanks

Ethan buys a video game on sale. If the video game usually costs $28.50, and it was on sale for 15% off, how much did Ethan pay? Round to the nearest cent.

Multiple Choice

The directions on a sewing pattern say to cut an extra 12% of fabric to account for error. Chloe needs 0.9 yards of fabric to make a skirt, so she cuts 0.108 yard. Did Chloe cut the correct amount of fabric? Why or why not?

• Chloe cut enough fabric because she cut the amount of fabric for the skirt.

• Chloe cut enough fabric because she cut enough fabric for the skirt and the amount of extra fabric.

• Chloe did not cut enough fabric because she only cut the amount of fabric for her skirt.

• Chloe did not cut enough fabric because she only cut the amount of extra fabric.

Multiple Choice

Which fraction has the same value as 37.5%

• $$\frac{37}{5}$$

• $$\frac{3}{8}$$

• $$\frac{4}{7}$$

• $$\frac{6}{15}$$

Multiple Choice

Dana measures and finds that she can do a vertical jump that is 34% of her height. If Dana can jump 17.68 inches, how tall, in inches, is she?

• 13.2 in.

• 48 in.

• 52 in.

• 601.12 in.

Multiple Choice

Elsa took out a 5-year loan to buy a car at a 4.25% simple interest rate. If she has to pay $1700 in interest over the life of the loan, how much principal did she borrow?

• $8,000

• $8,500

• $7,225

• $36,125

Fill in the Blanks

Joni earned $0.75 per day for five days as interest her $2,000.00 investment. What percent interest did she earn in total? Give your answer to three decimal places.