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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?
or to make it easier: if 175 = total number of nickels and dimes used; (175 total coins) - (n amount of nickles) = ?
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
I don't know if that helps, but what do you think the answer would be
Because now you know that it the answer is neither a or b which do you think its going to be?
I think a
No, I meant its either c or d because .5 has to be multiplied by n
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!
is it d?
Yes! Do you understand though?
kind of but still confused. thanks though
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