The sum of the numbers on two adjacent lockers is 689. What are the numbers?

Answer 1

344 and 345?

Answer 2

The difference between the numbers of adjacent lockers is 1
Let x be the smaller number of the 2 lockers
Let y be the bigger number of the 2 lockers
Hence,

x+x+1=689
x=344

y=x+1=344+1=345

Answer 3

You have answers, but no method.
Let n = the number on the lowest numbered locker.
The next consecutive locker will be n+1... one more than n.
n + (n+1) = 689
2n+1 = 689 because n+n = 2n
Add -1 to both sides
2n = 688
Multiply both sides by 1/2
n = 344.
The next consecutive locker will be
n+1=344+1=345

Answer 4

I'm assuming that by saying they are adjacent the numbers are consecutive integers. Let's call them n & n+1.

n+n+1=689
2n+1=689 subtract 1 from each side
2n=688 divide both sides by 2
n=344
n+1=345

The numbers are 344 & 345

Answer 5

assume adjacent lockers have consecutive numbers, call them x and x+1. then x + x+1 = 689
2x + 1 = 689. 2x = 688. x + 344 x+1 = 345

Answer 6

Hello Minnie 4,

The numbers are one apart.

Let x = the first one
then x+1 is the second one

So x + x + 1 = 689

2x +1 = 689

solve for x

2x = 688

x = 344 and x + 1 = 345 and 344 + 345 = 689

Hope This Helps!

Answer 7

344 and 345
344+345 = 689

Answer 8

let the no. on one locker be x and the other be x +1.
x + x + 1 = 689
2x = 688
x = 344
so the locker nos are 344 and 345

Answer 9

ooh, i love word problems
x is the number on the first locker
x+1 is the number on the second
x+(x+1)=689
2x+1=689
2x=688
x=344

lockers 344, 345

Answer 10

344 and 345