Question

In June, Cory begins to save money for a video game and a TV he wants to buy in December. He starts with $20. Each month he plans to save 10% more than the previous month. How much money will he have at the end of December?

1 answer

To calculate how much money Cory will have at the end of December, we need to determine how much he will save each month from June to December.

Starting with $20 in June, Cory will save:
June: $20
July: $20 + 10% of $20 = $20 + $2 = $22
August: $22 + 10% of $22 = $22 + $2.20 = $24.20
September: $24.20 + 10% of $24.20 = $24.20 + $2.42 = $26.62
October: $26.62 + 10% of $26.62 = $26.62 + $2.66 = $29.28
November: $29.28 + 10% of $29.28 = $29.28 + $2.93 = $32.21
December: $32.21 + 10% of $32.21 = $32.21 + $3.22 = $35.43

Therefore, Cory will have $35.43 at the end of December.