Question

Insert bad joke here

Answer 1

Hi,

PART A:

so 2y+30 is equal to x+y, right? since x+y=60.

With that equation, (2y+30=x+y)
you'll know that 2y+30=x+y=60

that means that

y=-30+x
and
x=y+30


So yes. If y=15, then x=45

Answer 2

PART B:

taking the info above, he spends 15 minutes doing freehand exercises.

Answer 3

If he spends 40 minutes on the treadmill, that means he spends 10 minutes doing freehand exercises.

40+10 = 50

not 60, so no. it isnt possible.

Answer 4

I hope that helped.