Karen is considering her winter coat options. One coast costs $300 and will last for 15 years. The other coat costs $120 and will last for five years. How much money would Karen save over 30 years by buying the more expensive cost?
First find the number of cheaper coats Karen will have to purchase over 30 years: 30 years / 5 years/coat = <<30/5=6>>6 coats
Then multiply that number by the cost of one cheaper coat to find the total cost of that option: 6 coats * $120/coat = $<<6*120=720>>720
Then find the number of more expensive coats Karen will have to purchase over 30 years: 30 years / 15 years/coat = <<30/15=2>>2 coats
Then multiply that number by the cost of one expensive coat to find the total cost of that option: 2 coats * $300/coat = $<<2*300=600>>600
Then subtract the total cost of the more expensive coats from the total cost of the less expensive coats to find the difference: $720 - $600 = $<<720-600=120>>120
#### 120