Check my math answers please!

posted by boi

1. Rename 4/7 as a percent. Round to the nearest tenth of a percent if necessary.
A. 47%
B. 1.8%
C. 57.1%
D. 28%

2. Rename .709 as a percent.
A. 709%
B. 70.9%
C. 79%
D. 7.09%
3 is 1/3 is equivalent to 33 1/3% what percent is equivalent to 2/3?
A 33 2/3%
B.150%
C 66 2/3%
D 65%
4. Alice plays basketball. In one she shoots 21 free throws and makes 81.25% of them. Estimate how many free throws she makes?
A. About 16
B. about 2
C. About 20
D. About 14

5 Estimate 48% of 23.95
A. About $12.00
B. About $11.00
C. About $15.00
D. About $10.00

6. The bill at a restaurant is $58.50 and Mrs. Johnson wants to leave a 15% tip. Approximately how much money should she leave?
A. About $15.00
B. About $9.00
C. About $6.00
D. About $11.00

7Which proportion can be used to solve the following percent problem? What is 50% of 70?
A x/70 = 50/100
B. x/50 = 70/100
C 50/70 = x/100
D 70/x = 50/100
8 What percent of 50 is 12.5?
A. 4%
B. 25%
C. 40%
D. 15%

9. 50 is 6.25% of what number?
A. 8
B. 80
C. 750
D. 800

my answers:
c
b
c
a
a
b
a
b
d

  1. Damon

    yes but very close call between a and b on number 5
    I doubt if they meant to have the result halfway between two choices :)

  2. Ms. Sue

    1. c - yes
    2. b - yes
    3. c - yes
    4. a - yes
    5. a - no
    6. b - yes
    7. a - yes
    8. b - yes
    9. d - yes

  3. Damon

    They said estimate :)
    Do you call 11.496 eleven or twelve :)
    In theory 11, but that is not estimating.
    I think it is a typo in the problem statement.

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