And the last question is: The sum of two consecutive integers is at least 14. What is the least possible pair of integers? A) 4 and 5 B) g and 7 C) 7 and 8 D) 8 and 9

Question

asked Jan 20, 2020 80.1k views

1 Answer

Scottmrogowski · Answer 1 · 2020-01-25T05:07:30+0000

Answer:

7 and 8

Explanation:

Given The sum of two consecutive integers is at least 14.

Let the two consecutive digits be x and x+1

The condition that should be satisfied by these numbers is that their sum must be atleast 14.

$x+(x+1)\geq 14$

$2x+1\geq 14$

$2x\geq 13$

$x\geq (13)/(2)$

$x\geq 6.5$

Since x is an integer x=7 and the other digit is 8.