Question

Matt is five years older than twice his cousin Andy’s age. The sum of their ages is less than 35.

Answer 1

Yes it is C. 0<X<10. you are correct.  Good Job

Answer 2

Answer : 0<x<10

Matt is five years older than twice his cousin Andy’s age. The sum of their ages is less than 35.

Let x represent Andy's age and y represents Matt's age

Matt's age = 2*Andy's age + 5

y = 2x +5 --------> first equation

The sum of their ages is less than 35.

So x + y < 35

Replace y by 2x+5

x + y < 35

x + 2x + 5 < 35

3x + 5 < 35 ( subtract 5 on both sides)

3x < 30 ( divide by 3 on both sides)

x < 30

age cannot be negative . so we take x from 0 to 30

Andy’s possible age is 0<x<10