Question #89fd2
2 Answers
Feb 1, 2018
The middle number is :
Explanation:
Given that the three numbers are consecutive.
If the middle number is
the first number will be
and the last number will be
Given:
So the three consecutive numbers that sum up to 54 are : 17, 18 , and 19.
And, the middle number is
Feb 1, 2018
Explanation:
#"assuming the numbers to be whole then"#
#"the middle number is "x#
#"the number before it is "x-1#
#"the number after it is "x+1#
#rArr"sum "=xcancel(-1)+x+xcancel(+1) =54#
#rArr3x=54#
#"divide both sides by 3"#
#(cancel(3) x)/cancel(3)=54/3#
#rArrx=18larrcolor(red)"middle number"#
#"the 3 numbers are "17,18" and "19#