What s 2x + 60 = 100?

x= 20

Step-by-step explanation:

2x + 60 = 100

> subtract 60 both sides

2x = 40

> divide both sides by 2

x= 20

20

Step-by-step explanation:

2x+60=100

-60

2x=40/2

x=20

Option C. Manuel's argument is correct; Paul used the incorrect formula to find the volume of square pyramid X.

Step-by-step explanation:

step 1

Find the volume of Cone W

The volume of the cone is equal to

where

B is the area of the circular base

h is the height of the cone

Find the area of the base B

we have

substitute

Find the volume

step 2

Find the volume of the square pyramid

The volume of the square pyramid is

where

B is the area of the square base

h is the height of the pyramid

we have

> is the same that the cone W

> is the same that the cone W

so

substitute

therefore

Manuel's argument is correct; Paul used the incorrect formula to find the volume of square pyramid X.