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2 years ago

FIRST TO ANSWER CORRECTLY GETS BRAINLIEST!!

Social Studies

2 answers:

MAVERICK [17]2 years ago

8 0

C. possibly don't take my word

alexgriva [62]2 years ago

6 0

Answer:

D. $25

Explanation:

From the information given, you can write the following equations:

d+q=162

0.10d+0.25q= 31.20

First, you have to isolate one of the variables in the first equation:

d=162-q

Then, you have to replace d in the second equation and solve to find the quantity of quarters, q:

0.10(162-q)+0.25q= 31.20

16.2-0.10q+0.25q= 31.20

0.15q= 15

q= 100

d=162-100= 62

Now, that the quatities of dimes and quarters were found, you can determine the amount you have in dimes and quarters:

Amount in quarters= 0.25*100= $25

Amount in dimes= 0.10*62= $6.2

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