Question

If the sides of a quadrilateral are in the ratio of 3:5:7:9 and the perimeter is 240 inches, find the length of each side

Answer 1

add total units
3+5+7+9=24 uniits
240=24 units
divide both sides by 24
10=1 units
easy

the sides are
30in
50in
70in
90in

Answer 2

Your equation would be 3x + 5x + 7x + 9x = 240
Combine like terms and that would lead you to 24x = 240
Then divide by 24 on both side leaving you with x = 10
Plug in x and your answer would be 30:50:70:90