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nika2105 [10]
3 years ago
13

Please help lol thank youuuuuuuuuuu

Mathematics
1 answer:
Margarita [4]3 years ago
8 0

Answer:

B) 7/2

Step-by-step explanation:

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Peggy had three times as many quarters as nickels. She had $1.60 in all. How many nickels and how many quarters did she have?. .
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Let

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q------> the number of quarters

we know that

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so

0.05n+0.25q=1.60 ----> equation A

q=3n ----> equation B

substitute equation B in equation A

0.05n+0.25[3n]=1.60

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n=2

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q=3*2=6

therefore

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the number of nickels are  2  and the number of quarters are 6

<u>the answer Part b) is</u>

The expressions that represents the number of quarters is

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