You can
put this solution on YOUR website!A dishwasher costs $975. You pay $150 down and finance the rest at 10.5% APR for 24 months. How much more did you pay for the dishwasher by financing it instead of paying cash?
I don't why you titled this question "geometric formula" when this is financial word problem not a geometry word problem.
Total cost of dishwasher = $975
If you put down $150, then what you have left over is $975 - $150 = $825.
APR = Annual Percentage Rate
If you decide to accept the APR deal, then $825 times 0.105 = $86.625
Now, multiply $86.625 by 24 months = $2079
When you financed the dishwasher, how much more did you pay instead of paying the entire $975 from the start?
This is what the question is asking you.
To find how much more you paid, subtract $975 from $2079.
So, $2079 - $975 = $1104 MORE.
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So, to finance this dishwasher is not a good deal.
Did you follow?