#1 alright so if the ratio is 5:4 adding them together is 9 but we want 36 as the perimeter sooo
36/9=4
So multiply both the 5 and the 4 makes....
20:16
The 20 and 16 show the total side of the length Andy width so we need to divide them by two so...
(20/2):(16/2)=10:8 so the width would be 8
Check:10(2)+8(2)=20+16=36 yay on to the next one!
#2 ok let's say the length is x, that means the width would be x-5 so the perimeter of that would be 4x-10. Sooo...
4x-10=54 || 4x=54+10 || 4x=64 || x= 16
So the length is 16 while the width is 11. Let's check in case.
16(2)+11(2)=32+22=54 yup :D
