Question

Jody's older brother is only three years less than twice Jody's age. If the sum of their ages is 30, then which of the following is the age of Jody's brother?
1. 7
2. 11
3. 19
4. 23

Answer 1

Answer:

2. 11

Step-by-step explanation:

Answer 2

Answer:

the and is 19

Step-by-step explanation:

let Jody's brother's age be B and that of Jody be J

$b = 2j - 3$

$j + b = 30$

subtitute b=2j-3

j+2j-3=30

3j-3=30

3j=33

j=11

therefore

b=2j-3

b=2(11)-3

b=22-3

b=19