370 PercentPractice
Chapter Test
Find each number. Round to the nearest
tenth if necessary.- Find 55% of 164.
- What is 355% of 15?
- Find 25% of 80.
- MULTIPLE CHOICE Out of 365 students, 210
bought a hot lunch. About what percent of
the students did NOT buy a hot lunch?
A. 35% C. 56%
B. 42% D. 78%
Estimate.- 18% of 246 6. 145% of 81
- 71% of 324 8. 56% of 65.4
- COMMUNICATION Carla makes a long
distance phone call and talks for
50 minutes. Of these minutes, 25% were
spent talking to her brother. Would the
time spent talking with her brother be
about 8, 12, or 15 minutes? Explain your
reasoning.
Write an equation for each problem. Then
solve. Round to the nearest tenth if necessary.- Find 14% of 65.
- What number is 36% of 294?
- 82% of what number is 73.8?
- 75 is what percent of 50?
Find each percent of change. Round to the
nearest whole percent if necessary. State
whether the percent of change is an increase
or a decrease.- $60 to $75
- 145 meters to 216 meters
- 48 minutes to 40 minutes
Find the total cost or sale price to the nearest
cent.- $2,200 computer, 6 _^12 % sales tax
- $16 hat, 55% discount
- $35.49 jeans, 33% discount
Find the simple interest earned to the nearest
cent for each principal, interest rate, and
time.- $750, 3%, 4 years
- $1,050, 4.6%, 2 years
- $2,600, 4%, 3 months
- MULTIPLE CHOICE Mr. Glover borrows
$3,500 to renovate his home. His loan has
an annual simple interest rate of 15%. If he
pays off the loan after 6 months, about
how much will he pay in all?
F. $3,500
G. $3,720
H. $3,763
I. $4,025 - EXTENDED RESPONSE Use the table below.
It shows the results of a survey in
which 175 students were asked what type
of food they wanted for their class party.
Type of Food Percent
Subs 32%
Tex-Mex 56%
Italian 12%Part A How many of the 175 students
chose Italian food? Explain.
Part B How many students chose
Tex-Mex food?366_370_C06_SGR_895130.indd 370 12/30/09 4:12 PM