3 years ago<span>Let x = a certain number of cookies
5x = 3x + 20
5x - 3x = 20
2x = 20
x = 20/2
x = 10
John: 5x = 5(10) = 50
Jerry: 3x + 20 = 3(10) + 20 = 30 + 20 = 50
They both have 50 cookies a piece</span>
Answer: 55.
Step-by-step explanation:R = 55. You put all the angles equal to 180 and then get the variable by itself.
P=2(k+w)
p=2k+2w
(subtract 2k from both sides)
p-2k=2w
(divide 2 from both sides)
p/2-k=w
w=p/2-k thats what i got. hope this helps love! :)