C=2pir
V=(4/3)pir^3
solve for V
C=31.4
31.4=2pir
divide by 2
15.7=pir
divide both sides by pi or 3.14
5=r
V=(4/3)pir^3
V=(4/3)pi5^3
V=(4/3)pi125
V=(500/3)*3.14
V=523.33333333333333333333333333333
rounded
523 cubic inchs
Answer:
175-3x=490
Step-by-step explanation:
he only has 3 weeks, which is a time limit, so it would be -3x instead of +3x, he only has 175, so he needs more, so it's positive. Hope this is correct (:
2(x + 4) = -5x + 1
2x + 8 = -5x + 1
2x + 5x = 1 - 8 = -7
7x = -7
x = -7/7 = -1
x = -1
Answer:
720
Step-by-step explanation:
Given that
The person could lose approx 8 × 10 if there is hair strains each day
Based on the above information
The number of hair strains the average person could lose in nine days is
= 9 days × 8 × 10
= 720
hence, the number of strains required for loosing in nine days is 720 and the same is to be considered
Answer:
12=3n
Step-by-step explanation:
Starting with "the sum 12" that means it equals 12 so, 12 = Something.
And three times a number, N would look like this ; 3n.
So the sum of 12- 12 = , three times a number n
12=3n
