Convert 87/15 to a mixed number

5 4/5 (5 12/15 not reduced)

Step-by-step explanation:

15 will go into 87 5 times.

15x1 = 15. 15x2 = 30. 15x3 = 45. 15x4 = 60. 15x5 = 75. 15x6 = 90. 90 can not go into 87, so you have to work with 75. 87-75=12. So, now your answer is

5 12/15. You are able to divide each of those numbers by 3, so let’s reduce. 12 divided by 3 is 4, and 15 divided by 3 is 5. So your reduced answer is 5 4/5. Hope that helped.

three-fourths of an hour

36÷48=0.75

0.75=

(a) the volume of the cone is 20/3 in3

hence, option a is correct.