# algebra

posted by .

Melissa is 31 years younger than her dad. The sum of their ages is 61. How old is Melissa? How old is her dad?

• algebra -

x + 31 = 62
x = 62-31
x = ?

• algebra -

Oops! I goofed.

Reiny pointed out the correct solution to me.

let Melissa's age be x

x+ x+31 = 61
2x = 30
x = 15

so Melissa is 15, her dad is 46

## Similar Questions

1. ### School-Age Children

Melissa plays with the same four girls everyday.She has a lot of energy, is independent, and is concerned about what her friends think. Melissa likes soccer and baseball and takes pleasure in beating the boy's team.Melissa is most …
2. ### MATHS

Could you please explain the quickest way to calculate these questions?
3. ### MATHS

Could you please explain the quickest way to calculate these questions?
4. ### ALGEBRA

I know the answers, but am having trouble writing the equation. Their ages are 17 and 8.5, and 14.5 Can I get help with the equaiton?
5. ### algebra

A dad is now three times as old as his son, but in eleven years the dad will be only two times as old as his son is then. How old will the dad be next year?
6. ### algebra

A person is 3 times as old as aonther person but in 15 years she will only be 2 times as old. I found the answer the younger person is 15 years old and the older person is 45 years old. But 15 years from now the younger person will …
7. ### algebra

child is now 3 years old - dad opens account with \$10,000 it earns 4.5% annual intrest. a) construct formula (A(t)=Ao(a)^t) b) how much money will be in account when he is 10 years old c) if dad wants account to grow to 100,000 when …
8. ### child day care management

Q; Melissa plays with the same four girls every day. She has a lot of energy,is independent,and is concerned about what her friends think.Melissa kikes soccer and baseball and takes pleasure in beting up the boy's team. Melissa is …
9. ### math word problems

This year Jerry is half as old as his dad and 1/3 the age of his grandfather. If the sum of their ages is 132, how old is Jerry?
10. ### Jefferson

lisa is 6 years older than Tom. Their father's age is twice the sum of their ages. How old is lisa if her dad is 32?

More Similar Questions