Question

PLS HELP!! Katie earned 15% more this week than last week. This week she earned $225, how much did she earn last week?

Answer 1

$258.75

Explanation:

225 * 0.15

Answer 2

Let last weeks pay = x

This week she earned 15% more so she earned 100% + 15% more for 115% total.

Setup an equation:

115% times x = $225

115% as a decimal = 1.15

So the equation is:

1.15x = 225

Solve for x by dividing both sides by 1.15:

X = 225/1.15

X = 195.65

Last week she earned $195.65