###### Asked in Math and Arithmetic

Math and Arithmetic

# What is 4 add something to make 23?

## Answer

###### Wiki User

###### May 13, 2012 1:27PM

19

## Related Questions

###### Asked in Math and Arithmetic, Algebra

### What could you add to 23 to make is divisible by 10...2..5..?

The lowest number you could add to make it divisible by 10, 2,
and 5 would be 7.
23 + 7 = 30
30/10 = 3
30/2 = 15
30/5 = 6
Also, technically, you could add (-3) to make 20.
23 + (-3) = 20
20/10 = 2
20/2 = 10
20/5 = 4
Basically, you could add any number to 23 that would get a
multiple of 10, since 2 and 5 are both factors of 10 to begin
with.

###### Asked in Math and Arithmetic

### What two numbers multiply to 60 and add up to -23?

-3 and -20
In order to multiple to a positive number and add to a negative
one, both the numbers in question must be negative.
The factors of 60 are:
1, 60
2, 30
3, 20
4, 15
5, 12
6, 10
The third pair listed, 3 and 20, will add up to a positive 23.
So all that remains is to make them both negative.
(-20) + (-3) = -23
(-20) * (-3) = 60