Question
the length of a rectangle is 7 times as long as its width. if the perimeter is 72 meters what is the length and width of the rectangle? please show how to set up eqaution.
Answers
Jen
L=7W
2L+2W=72
2(7W)+2W=72
14W+2W=72
16W=72
W=4.5, now substitute that back in either original equation to solve for L and
L=31.5
Substitute in both original equations, both work.
2L+2W=72
2(7W)+2W=72
14W+2W=72
16W=72
W=4.5, now substitute that back in either original equation to solve for L and
L=31.5
Substitute in both original equations, both work.