Question

PLEASE HELP 20 points!!!

Answer 1

I’m literally doing this homework right now lol.

Answer 2

Answer:

x = 10 cm

Step-by-step explanation:

The volume of a pyramid is $V = \frac{Bh}{3}$, 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
• $280= \frac{(14)(6)(x)}{3}$

Step 1: Multiply both sides by 3.

• $280*3=\frac{84x}{3} *3$
• $840=84x$

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.