Question

Mary is five times older than Julian. If the
sum of their ages is 42, how old is Mary?

Answer 1

Mary is 35.

Explanation:

An equation would be 5j + j = 42.

I used substitution by plugging in 7:

5(7) + 7 = 42

35 + 7 = 42

Hope this helps,

♥A.W.E.S.W.A.N.♥

Answer 2

35

Explanation:

M=5J

J=M/5

42=6J

42/6=7

Jullian is 7

7x5=35

Mary is 35

35+7=42