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I'm concluding that this is a geometric series. How would I solve for the common ratio?

 Jun 10, 2018
 #1
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6)

 

No, it is not a geometric series. It is a simple "word problem!"

 

Since they want to raise $350 in one day and the owner contributes $20, then they need to raise:

$350 - $20 = $330 from the sale of coffee.

$330 / 2,200 =$0.15 - or 15 cents per cup of coffee.

 Jun 10, 2018

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