Answer:
M(t) = 4/3 * pi * (4t + 3)^3
Step-by-step explanation:
W(t) = radius after t seconds,
Substitute W(t) for r in V(r)
Since W(t) = 4t +3:
M(t) = 4/3 * pi * (4t+3)^3
9514 1404 393
Answer:
34
Step-by-step explanation:
In order to divide some multiple of 15 chocolate bars evenly by 21, the number of bars must be a multiple of the LCM of 15 and 21, which is 105. That number is 7 times 15, indicating the number of boys in the class must be a multiple of 7. The only number between 30-20 = 10 and 40-20 = 20 that is a multiple of 7 is 14.
There must be 14 boys in the class, so 34 students in total.
__
The boys brought a total of 210 chocolate bars, so each girl and the teacher received 10 of them.
Answer: 21/28
Step-by-step explanation: you know 75/100 is 0.75, which means whatever is on top of 28 has to be less than 28 so the answer is less than 1. I just plugged in numbers until I got the right answer.
Answer: $4
Step-by-step explanation:
The soft drink was 4 dollars so you subtract that from the twenty dollars.
20-4=16
You bought four candy bars so you divide the remaining 16 dollars by 4.
16/4=4
Therefore, each candy bar costs $4.
what equation am i suppose to be solving