Question

Mark’s brother is five years older than Mark. Their combined ages add up to 23. How old is Mark?

Answer 1

Answer:

18

Step-by-step explanation:

because if marks brother is 5 years older the subtract 23 with 5 and it equals 18 because 18 + 5 = 23

Answer 2

$\text{Hello There!}$

  For your equation, you will need to ${\underline{\underline{{subtract}}}$ their combined ages by half of 23.

$\text{Half of 23 is 11.5}$

     $\text so\;23 - 11.5 = 11.5$

$\text{We need to check our answer.}$

 $11.5 + 11.5=23$

$\bold{So\;our\;answer\;is\;going\;to\;be}$

$\huge\text{11.5}$

$\rule{300}{1.0}$