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lisov135 [29]
3 years ago
13

True painful question. If you get it right, automatic brainliest. 5 stars and thanks for ALL, even for comments. I am sorry for

spamming Khan Academy questions...

Mathematics
1 answer:
Over [174]3 years ago
6 0

Answer:

31.4/3.14=10

10/2=5

5 x 5 = 25

25 x 3.14 = 78.5

78.5 is the correct answer

Step-by-step explanation:

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Suppose you have just enough money, in coins, to pay for a gallon of milk priced at $2.40. You have 12 coins, all quarters and d
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The answer is
q + d = 12
0.25q + 0.10d = 2.40


q - the number of quarters
d - the number of dimes

You have 12 <span>coins, all quarters and dimes:
q + d = 12

The value of 1 quarter is $0.25.
The value of 1 dime is $0.10.
Therefore, if you want to pay </span>$2.40 you will have q quarters of value $0.25(0.25q) and d dimes of value $0.10d (0.10d).
The second equation is:
0.25q + 0.10d = 2.40
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