What is the sum of three consecutive even integers is -360?

2 Answers

If you are trying to find the three numbers, they are #-122#, #-120#, and #-118#.

Explanation:

They are consecutive, so the average would be #-360/3=-120#. That would give you #-120#, #-120#, and #-120#.
However, they are consecutive even integers. So subtract 2 from one of the numbers and add 2 because it will even out the average. That should get #-122#, #-120#, and #-118#.

May 24, 2018

-118,-120,-122

Explanation:

Considering that the numbers have to be consecutive, the three numbers would be close in value to each other. we'd be looking for numbers that are close to:

#-360/3=color(blue)(-120)#

So we need 3 consecutive numbers that are close to 120, and sum to 360. Luckily 120 can be considered an element in the 3-number set:

#-color(blue)(120)-122-124=color(red)(-366)#

#-116-118-color(blue)(120)=color(red)(-354)#

#-118-color(blue)(120)-122=color(green)(-360)#

So now we have our set:

#{-118,-120,-122}#