Answer:
x = 3
Step-by-step explanation:
If JL = 28, then JK = 14 - 28/2 = 14 (midpoint)
14 = 4x + 2
12 = 4x
x = 3
Let L be the length
Let w be the width
Let p be the perimeter
L+w+L+w=p
L=w+20
3L+2w+3L+2w=240
Sub the first equation in for L in the second equation and solve for w
3(w+20)+2w+3(w+20)+2w=240
3w+60+2w+3w+60+2w=240
10w+120=240
10w=240-120
10w=120
W=120/10
W=12
Sub w into the first equation and solve for L
L=w+20
L=12+20
L=32
Hope this helps!
Direct proportionality
y/x=k
-9/3=k
k=-3
so when y=18
18/x=3
cross multiply
3x=18
divide both sides by 3
3x=18
x=6
Step-by-step explanation:
add the radii to get the diameter then multipy by pi
10 (3.14) =31.4