The perimeter of the rectangle is 64 cm. Find the value of x. Ya'll, I need help. I don't know the first thing about finding perimeters and such. Picture included.

Question

anonymous · Answer

attachment

dtan5457 · Answer

Well the perimeter is when you add up all the sides. In this case it equals 64. A rectangle has 2 pairs of equal sides.

It says one side is 11 while the other is 3x.

A algebraic equation to solve this would be 22+6x=64

6x=42.

x=7, your answer.

anonymous · Answer

Ohhh.. So I just add all sides and then solve for the equation?

anonymous · Answer

D. 7
11+11=22 so 64-22= 42 and 42 divided by 2 = 21 and 21 divided by 3 is 7
the 2 11s are for the known side lengths
you divide 42 by 2 because there are 2 unknown sides

anonymous · Answer

Yes..

dtan5457 · Answer

Well that's what the perimeter is, to add up all the sides.

dtan5457 · Answer

Any confusion?

anonymous · Answer

No, I got it, I think :) But thanks.