338,358 views
43 votes
43 votes
PLEASE HELP 20 points!!!

PLEASE HELP 20 points!!!-example-1
User Zhianc
by
3.1k points

2 Answers

25 votes
25 votes

Answer:

x = 10 cm

Explanation:

The volume of a pyramid is
V = (Bh)/(3), where V = volume, B = area of base, and h = height.

  • We're given the height as 14 cm
  • We're given the volume as 280 cubic cm
  • We're given one of the dimensions of the rectangle as 6 cm

  • 280= ((14)(6)(x))/(3)

Step 1: Multiply both sides by 3.


  • 280*3=(84x)/(3) *3

  • 840=84x

Step 2: Divide both sides by 84.


  • 840/84=84x/84

  • x=10

Step 3: Check if solution is correct.

  • 10 * 6 * 14 = 840
  • 840/3 = 280

Therefore, x = 10 cm.

User Paul Suart
by
2.7k points
12 votes
12 votes
I’m literally doing this homework right now lol.
User Kajackdfw
by
2.8k points