Digits, Grade 7, Volume 1, Homework Helper

### 9-1: TEKS Practice

• 1. Decide whether the following question is looking for the part, the percent, or the whole: 6 is what percent of 17?

• 2. Decide whether the following situation is looking for the part, the percent, or the whole: 6 of 18 pears are yellow.

• 3. 4 is what percent of 16?

• 4. The football team has a total of 20 jerseys. There are 4 medium-sized jerseys. What percent of the jerseys are medium-sized jerseys?

• 5. A local little league has a total of 60 players, of whom 80% are right-handed. How many right-handed players are there?

• 6. The local newspaper has letters to the editor from 40 people. If this number represents 5% of all of the newspaper's readers, how many readers does the newspaper have?

• 7. A student answers 90% of the questions on a math exam correctly. If he answers 27 questions correctly, how many questions are on the exam?

• 8. Kevin went to see his favorite sports team play. His car can go 300 miles on one tank of gas. If he used 40% of a full tank of gas, how many miles did he travel?

• 9. Dan is watching the birds in his backyard. He figures out that 9, or 33%, of the birds are sparrows. Does Dan need to find the part, the whole, or the percent?

• 10.

• a. Writing What is 50% of 36?

• b. Write a percent problem that asks you to solve for the whole.

• c. Write a problem that asks you to solve for the percent.

• 11. Error Analysis Tom's math teacher asks, “7 is 50% of what number?” Tom incorrectly says, “350.”

• a. What is the correct answer?

• b. What error did Tom likely make?

• A. He did not divide by 100.

• B. He wrote the percent equation as percent = whole ÷ part.

• C. He wrote the percent equation as whole = percent · part and did not divide by 100.

• 12. Car Survey In a survey of 2,000 people who owned a certain type of car, 1,100 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?

• 13. Think About the Process There are 4,000 books in the town's library. Of these, 2,600 are fiction.

• a. To find the percent of the books that are fiction, first set up the percent equation.

• A. 2 comma 600 equals m divides 4 comma 000

• B. 2 comma 600 equals m middle dot 4 comma 000

• C. 4 comma 000 equals m divides 2 comma 600

• D. 4 comma 000 equals m middle dot 2 comma 600

• b. What percent of the books are fiction?

• 14.

• a. Reasoning If 50% of the registered votes cast 228,000 votes in an election, how many registered voters are there?

• b. In another election 60% of the registered voters cast 273,600 votes. How do the number of registered voters compare in the two elections?

• 15. Meg is a veterinarian. She found that 50% of the 16 dogs she saw this week were boxers. Steve is also a veterinarian. He found that 7 of the 35 dogs he saw this week were boxers.

• a. Does Meg need to find the part, the whole, or the percent?

• b. Does Steve need to find the part, the whole, or the percent?

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