Calculate Savings Capacity from a Budget

Question

Lauren used the Quantitative Reasoning Process to budget and to start a savings account. Each month she makes about $235 from a part-time job. Lauren's parents also send her $100 per month. The sum of Lauren's paycheck and the money she gets from her parents is 18% more than her total expenses. How much money does Lauren have available to add to her savings account each month?

Answer 1

235 + 100 = 335 = monthly income

335 is 18%= .18E, more than her total monthly expenses, E

1.18E = 335

E = 335/1.18 = about $283.90

18% of 283.90 = $51,10 left over for savings each month

283.90 + 51.10 = 335

283.90(1.18) =335