Algebra

Here are two more problems I have for homework tonight. I have gotten answers, but I used "guess-and-check" and could not find an equation like I am supposed to. If you answer, please tell me if my answer is correct, walk me through your way of solving it, and if you can, show me an equation. Thanks!

#1: In a basketball game, the United States has four times as many points as Croatia. A Croatian makes a basket for three points, at which point the United States only has three times as many points. How many points does the United States have?

Here is the equation that I have:
3c + 9 = 4c
Which is a simplifyed version of:
3(c+3) = 4c.

Are my equations correct? The answer I got was 36 points.

#2: Sue has $3.08 in pennies, nickels, and quarters. She has four more pennies than quarters and one more nickel than pennies. How many nickels does she have?

I do not know the equation for this one. My answer was 14 nickels.

Again, thank you so much for any help you can give me!

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asked by Celina
  1. #1 is correct

    #2.
    <<She has four more pennies than quarters> ----> q = p-4
    <<one more nickel than pennies> ----> n = p+1

    Now form the value equation :
    25q + 5n + p = 308
    25(p-4) + 5(p+1) + p = 308

    take it from there
    (your 14 nickels is correct, 13 pennies and 9 quarters)

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    posted by Reiny
  2. Thank you so much for your help! :)

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    posted by Celina
  3. meh.

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    posted by yoma
  4. keep it clean here.

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    posted by george

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