Question

Jerry walked a dog from 6:40 am to 7:30 am. If he was paid at a rate of $6 per hour, how much did he earn that day?

Answer 1

`$5`

Explanation:

Since Jerry walked the dog from 6:40am to 7:30am, the total minutes that he walked the dog was `50` minutes. Also a note, an hour is `60` minutes.

Since he is paid at a rate of `$6` per `60` minutes, we can make a proportion.

`6/60 = x/50`

From here, you have to solve for `x`. So cross multiply, and then simplify.

`60x = 50 * 6`

`(60x)/60 = (50 * 6)/60`

`(cancel(60)x)/cancel60 = (5cancel0 * 6)/(6cancel0)`

`x = (5 * cancel6)/cancel6`

`x = 5`

So the answer is `$5`.

Answer 2

`$5` for the day

Explanation:

6:40am to 7:40 = 1 hour

He walked the dog from 6:40am to 7:30am

`:.7:40am - 7:30= 10` minutes short from 1 hour

So he walked the dog for 50 minutes in one day.

His rate per hour `= $ 6`

1 hour = 60 minutes

`:.=$6` per hour ( per 60 minutes)

`:.cancel50^5/cancel60^6 xx $6`

`:.5/cancel6^1 xx $cancel6/1`

`:.=$5` for 50 minutes work for one day