The sum of two numbers is 7 and there difference is 5

Elimination frenzy.

  x+y=7

+(x-y=5)

2x=12

x=6

6+y=7

y=1

6 and 1

for the points! : )

80π/3 or about 83.775

step-by-step explanation:

since a cone is 1/3 of a cylinder, we need to find the base's area. since area = πr^2, we get 16π. then, multiplying this by 5, we get 80π. dividing by 3, since the cone's volume is 1/3 of that of a cylinder's, we get 80π/3.

hope this !