Question

Kyra purchased a pack of 20 erasers. She kept 8 erasers and equally divided the rest among three friends. Which expression tells how many erasers each friend received?

Answer 1

Given:

Total number of erasers = 20

Kyra kept 8 erasers and equally divided the rest among three friends.

To find:

The expression that tells about the number of erasers each friend received.

Solution:

Total number of erasers = 20

Kyra kept 8 erasers.

Number of friends = 3

Let x be the number of eraser each friend received.

Number of eraser divided amount three friends = 3x

Now,

Erasers kept by Kyra + Erasers divided amount three friends = Total erasers

`8+3x=20`

`3x=20-8`

Divide both sides by 3.

`x=(20-8)/(3)`

It can be written as

`x=(20-8)/ 3`

Therefore, the required expression is
`(20-8)/ 3` and its value is 4.