Question

betty is now three times as old as mike, but in five years she will be only twice as old as mike. how old is mike right now?


i don't get what your suppose to do

Answer 1

NOW:
MIke - x
Betty - 3x

In 5 Years:
MIke - x+5
Betty - 3x+5

but it said: (3x+5) = 2(x+5)

solve for x

Answer 2

x=3y
and
x+5=2y
solve for y in 1st and carry to 2nd eq
y=x/3

x+5=2(x/3)
solve for x
check answer

Answer 3

solve and comparison:

a)4x-9y+4
6x+15y=-13

im so lost!!!!!

Answer 4

mary is 4 and mike is 12