7th Grade Math

40. RADIO The graph below shows the results of a poll of 2,632 listeners.
    Round answers to the nearest whole number.

Favorite Places to Listen

Radio Listeners

Percent

Gym Home Work Car

50

40

30

20

10

0

12%

38% 41%

9%

a. How many people listen to the radio during work?

b. How many people like to listen to the radio while they are at the gym?

c. How many more people listen to the radio in the car than at home?

Use mental math to estimate each percent.

41. 53% of 60 42. 24% of 48 43. 75% of 19


42. FRUIT The table shows the results of a survey of Favorite Fruit
    Berries 44%
    Peaches 32%
    Cherries 24%

225 people about their favorite fruit.

a. Of those surveyed, how many people prefer peaches?

b. Which type of fruit did more than 100 people prefer?

c. Of those surveyed, how many people did not prefer

cherries? Explain your answer.

4545 SCHOOL Suppose there are 20 questions on a multiple-choice test. If 25%

of the answers are choice B, how many of the answers are not choice B?

46. GRAPHIC NOVEL Refer to the graphic novel frame below. Find the dollar
    amount of the group discount each student would receive at each park.

Marisol, Blake,

and I want to get

the best deal for

our class.

an

th

ou

First, let’s figure

out what each student

would be able to save

on their ticket at

each park.

Lesson 1B Percents 323

318_330_C06_L1_895130.indd 323 12/30/09 4:03 PM