SOLUTION: How would I solve for this problem. If the perimeter is 78cm and I have to find the dimentions of the rectangle ? 2x ----------- ------- |. |

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Question 894785: How would I solve for this problem. If the perimeter is 78cm and I have to find the dimentions of the rectangle ?

2x
-------------------
|. | X+3
|. |
—————----
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
You are attempting to show a rectangle with one dimension 2x and the other dimension x+3;
and the perimeter is given as 78 cm.

2%282x%29%2B2%28x%2B3%29=78, follows formula for perimeter.
2x%2Bx%2B3=39
3x=36
highlight_green%28x=12%29

You can now evaluate 2x and x+3.