Question 133149
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?