3 years ago

Average Hours of Screen Time

Mathematics

2 answers:

jeka943 years ago

6 0

Answer:

Step-by-step explanation:

andrey2020 [161]3 years ago

3 0

Answer:

14 is the answer.

Step-by-step explanation:

I know that is correct, because when you add the 3 different values together and divide by the answer that you get from doing so, it comes out to a final answer of 14.

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Step-by-step explanation:

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3 years ago

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First option: (Substitute)

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A jar contains $14.25 in quarters and dimes. There are 75 coins in the jar. Find the number of quarters in the jar.

Marianna [84]

Set up a system of equations.
d + q = 75
.1d + .25q = 14.25

Multiply the first equation by -.1 so that the "d's" will cancel.
-.1d -.1q = -7.5
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divide both sides by .15
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4 years ago

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borishaifa [10]

Step-by-step explanation:

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3 years ago

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