Math - please double check me

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There are 42 accounting classes with 31 students in each class. Estimate the total number of students in the accounting classes.
a. 1200
b. 900
c. 1600
d. 1500
answer: c
One kilometer is equal to 1000 meters. What fractional part of a kilometer is 500 meters? Simply your result.
a. 2/3
b. 2/4
c. 500/1000
d. 1/2
answer: d
Maria earns $17 per hour. last week, she worked 10 hours/day for 5 days. What was her gross pay?
a. 850
b. 800
c. 935
d. 1020
answer: d
What is the perimeter of a rectangle if the length is 5/9 cm and the width is 2/9 cm?
a. 5/9 cm
b. 1 5/9cm
c. 7/9
d. 1 7/9cm
answer: c

  • Math - please double check me -

    The first and last are wrong.

  • Math - please double check me -

    Only your second answer is correct. For the first one, you're asked to estimate. Hint: 4 * 3 = 12

    Please try again, and we'll be glad to check them again.

  • Math - please double check me -

    there are 42 accounting classes with 31 students in each class. Estimate the total number of students in the accounting classes.
    answer: 1200 students

    Maria earns $17 per hour.last week, she worked 10 hours/day for 5 days. What was her gross pay
    answer: a

  • Math - please double check me -

    Your answers are correct now. :-)

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