Martin is 6 years younger than his sister. The sum of their ages is no more than 22 years. What is an inequality that can be used to represent this situation where X represents martins sisters age

Question

Elwood

26 May, 07:24

+3

Answers (2)

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Amy Weber · Answer 1

sisters age = x

martins age = x-6

equation: x + (x-6) <=22

2x - 6 <=22

2x<=28

x< = 28/2

x< = 14

Jaron Sutton · Answer 2

Let n be Martin's sister's age. Then Martin is n-6. So:

n+n-6≤22

2n≤28

n≤14

n-6≤8

The oldest Martin's sister can be is 14.