Sarah spent 30% of her savings and has $280 left. How much did she start with?

Step-by-Step Solution

1. 1

   Subtract

   Step 1 uses a given number.

   100 - 30 = 70

2. 2

   Divide

   Step 2 uses a given number and the result of an earlier step.

   280 ÷ 70 = 4

3. 3

   Multiply

   Step 3 uses the result of an earlier step and a given number.

   4 × 100 = 400