Question

translate the following into an equation, do NOT slove....
Cheryl's commute is 4.5 miles further than Joanna's. Matthews commute is 21 miles less than 5 times times Joanna's commute. If their average commute is 13 miles, how far is Joanna's commute?
Is my answer even close???
Joanna's commute will be x
x + x + 4.5 + x * 5 - 21 divided by 3

Answer 1

c = j+4.5

m = 5j-21

average commute = 13.... (m+j+c)/3

(j+4.5) + (5j-21) + j
------------------
3

Answer 2

why use x for joanna? j is so much easier to relate to in this

Answer 3

(j+4.5) + (5j-21) + j
------------------ = 13 ;)
3