anonymous
  • anonymous
Bodhi has a collection of 175 dimes and nickels. The collection is worth $13.30. Which equation can be used to find n, the number of nickels in the collection? a. 0.1n + 0.05(n – 175) = 13.30 b. 0.1n + 0.05(175 – n) = 13.30 c. 0.1(n – 175) + 0.05 = 13.30 d. 0.1(175 – n) + 0.05n = 13.30
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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DJJo
  • DJJo
175 is the total number of coins you're using- n represents how many of them are nickles; if you are only using nickles and dimes, what does 175 - n equal?
anonymous
  • anonymous
12?
DJJo
  • DJJo
or to make it easier: if 175 = total number of nickels and dimes used; (175 total coins) - (n amount of nickles) = ?

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More answers

DJJo
  • DJJo
a dime equals $.01 and a nickel equals $.05 so what you want to find is the nickels, so the n would go with the nickels as .05n, but also 175
DJJo
  • DJJo
I don't know if that helps, but what do you think the answer would be
DJJo
  • DJJo
?
DJJo
  • DJJo
Because now you know that it the answer is neither a or b which do you think its going to be?
anonymous
  • anonymous
I think a
DJJo
  • DJJo
No, I meant its either c or d because .5 has to be multiplied by n
DJJo
  • DJJo
also you know that n is going to be smaller than 175 so you would have to subtract n from 175 like this: 175-n Hope this helps!
anonymous
  • anonymous
is it d?
DJJo
  • DJJo
Yes! Do you understand though?
anonymous
  • anonymous
kind of but still confused. thanks though
DJJo
  • DJJo
No its d because you have to subtract n from 175 like this: 175 - n, as 175 is total amount of coins and your answer would become negative
anonymous
  • anonymous
The answers from Mathematica 9 are attached. Perhaps you can use those and work backwards.
1 Attachment

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