Fred has a bag of coin with only nickels and quarters. He got $20 by
1 answer:
Answer:
75 quarters 25 nickels
Step-by-step explanation:
q=quarters n=nickels
q+n=100 n=100-q
0.25q +0.05(100-q)=20
From now I will multiply by 100 to avoid decimals
25q + 5(100-q)=2000
20q=1500
q=75 n=25
75*0.25= 18.75
25*0.05=1.25
18.75+1.25=20
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I did this by taking 3.15 / 0.25
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820 
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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