The sum of three numbers is 110. the second number is twice the first. the third number is equal to three times the first minus the one half the first

Let the first number = X

The second number is twice the first, so is 2X

The third number would be 3X-0.5x = 2.5X

Now you have X + 2X + 2.5X = 110

Simplify:

5.5X = 110

Divide both sides by 5.5:

X = 110 / 5.5

X = 20

The first number is 20.

The second number is 2x = 2*20 = 40.

The third number = 2.5x = 2.5*20 = 50.

to rewrite a literal equation you may need to divide by a number, or by a variable.

hope i .

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 !