Sophie is 3.5 years younger than her brother. She knows that when she is b years old, her brother is b+3.5 years old. Right now,

Question

2 years ago

13

Sophie is 11.5 years old.
How old is Sophie's brother?
Write your answer as a whole number or decimal.

2 answers:

Elden [556K] · Answer 1 · 2022-07-10T03:32:07+03:00

4 0

Answer:

The answer is 15

Step-by-step explanation:

Lets say b is the age of Sophie, so B would equal 11.5

11.5 + 3.5 = 15 years old.

djyliett [7] · Answer 2 · 2022-07-10T01:54:53+03:00

3 0

Answer:

b = 8

Step-by-step explanation:

b + 3.5 = 11.5

Subtract 11.5 from 3.5 to get her brother's age