Question

The McIntosh family went apple picking. They picked a total of 115 apples. The family ate a total of 8 apples each day. After how many days did they have 19 apples left?

Answer 1

`12 days`

Explanation:

If they started with 115 apples
when they had 19 apples left
they would have eaten `115-19=96` apples.

`96` apples `div 8` apples/day `= 12` days

Answer 2

There are `19` apples left after `12` days

Explanation:

let the number of days be `x`
8 apples per day gives the first term `8x`
add 19 apples for the number to be left over

must come to a total of `115`

putting it all together
`8x + 19 = 115`

simplifying
`8x = 115-19 = 96`

`x=96/8 = 12`

Therefore there are `19` apples left after `12` days

Answer 3

After 12 days

Explanation:

This is a problem you can solve using a lineal equation. Let's call the the day the family picked up the apples day zero. Here, the McIntosh family has 115 apples.

`y=115`

Now, everyday, they eat 8 apples. So in the first day they have `115-8 =107` apples. And it goes on, so: we could say the number of apples left is dependant on how many days eating 8 apples a day have passed:

`y=115-8x`

Now, at certain day, they will be left with `19` apples:

`19=115-8x`

`19-115=-8x`

`-96=-8x`

`8x=96`

`x=96/8=12`

On the 12th day the McIntosh family will have 19 apples left.