Question

Penny"s salary this year is $33,457. This is 3% more than her salary last year. what did she earn last year?

Answer 1

`$32482.52`

Explanation:

So for questions like this, I prefer to use the unitary method which is to find 1% then times that by 100 to find 100%.

here's how:

`33,457 = 103%(100%+3%)` this is because it is 3% more than what she earned before so it becomes 103%

`(33,457)/103 = 1%`

`100 = (33,457)/103 * 100`

`100 % = 32,482.5242718447`

since it is money we round to 2 decimals.

so the answer is `$32482.52`

Answer 2

Let.. her last year salary be `x`
Three percent more means is `3%` more than last year
It means it is `100%+3%=103%` more than last year
`x xx 103/100 = 33457`
It means
`x=33457xx100/103`
Multiply
`x~~32482.52`