Question

4) John's sister is 8 years less than twice his age. If John is 39, what age is his sister?

Answer 1

Sister is 70

Explanation:

John is 39.

8 less than twice his age is

39*2-8 = 70

Answer 2

70 years old.

Explanation:

Since John's sister is 8 years younger than TWICE his age, we just need to multiply 39*2 which equals 78. Now we just need to subtract 8 which equals 70.

Hope this helps!! <3