mia362709 mia362709
  • 16-02-2021
  • Mathematics
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Marks brother is five years older than Mark. Their combined ages add up to 23. How old is Mark?

Marks brother is five years older than Mark Their combined ages add up to 23 How old is Mark class=

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hlv8
hlv8 hlv8
  • 16-02-2021

Answer:

18

Step-by-step explanation:

equation: 5 + a(unknown age) = 23

23 - 5 = 18,

5 + 18 = 23

Therefore Mark is 18 years old

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BulletBob BulletBob
  • 16-02-2021
Mark is 9 (and his brother is 14).
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