Question

Yannick and Jean are playing a guessing game with integers. Yannick wrote these clues to help Jean guess the unknown integer. n+6 greater than or equal to 15 and n+5<15 What is the value of the unknown integer, n?

Answer 1

It's B) 9. I took the quiz and got it write.

Answer 2

9

Explanation:

The solution to ...

n +6 ≥ 15

is found by subtracting 6:

n ≥ 9

__

The solution to ...

n +5 < 15

is found by subtracting 5:

n < 10

__

The only integer that is at least 9 and less than 10 is 9.

The value of the unknown integer, n, is 9.