8. You just multiply x and y together
So k=katie's' age
m=mara's age
k is 2 times as old as m
k=2m
sum is 24
add means sum
k+m=24
so we have
k+m=24 and
k=2m
subsitute
2m+m=24
add
3m=24
divide both sides by 3
m=8
subsitute again
k=2m
k=2(8)
k=16
katie=16
mara=8
Answer:6x+36, 5x+5, 10x-9
Step-by-step explanation:
2y+7z hope this helped dude
Answer:
2/18, 1/9
Step-by-step explanation:
5/18 + (-1/6)
-1/6=-3/18
5/18+(-3/18)=
2/18
