Question

16. Write and solve an equation to find two consecutive odd integers such that their sum is twenty.

Answer 1

9 and 11

Explanation:

there is a difference of 2 between consecutive odd integers.

let n and n + 2 be the integers , then

n + n + 2 = 20

2n + 2 = 20 ( subtract 2 from both sides )

2n = 18 ( divide both sides by 2 )

n = 9

and n + 2 = 9 + 2 = 11

the two consecutive odd numbers are 9 and 11