-4(2y)+11y=15, -8y+11y=3y=15: y=5
X=2(5)=10
To check your work -4(10)+11(5)=15
15=15
Triangle? because when you rotate it each part will be a bit different
Let’s suppose x as Ben’s score, then,
6x : x : (1/3) 6x
Hope it helps :)
A) 9 minutes per mile.
b) Not sure.