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lisabon 2012 [21]
3 years ago
5

What is the approximate solution of this system of equations?

Mathematics
1 answer:
Effectus [21]3 years ago
3 0
Hmm, I'd say it's the first option.
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45 minutes because 1/4 of an hour is 15 min so 15+15+15=45
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Bruce overdrew his checking account by $19, for which his bank charged him a $35 overdraft fee. If he deposits $60, what will hi
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Please help! Will give Brainliest!!!!~
Zepler [3.9K]

Answer:

  the first selection is so shaded

Step-by-step explanation:

Each strip is divided into 10 parts. 1/5 will be represented by 2 of those parts, so 2/5 will be represented by 4 of the 10 parts. The 3/10 used on the other gift will be represented by 3 additional parts. So, a total of 7 of the 10 parts of the strip need to be colored to represent the ribbon used.

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2 years ago
How many decibels is this? show work​
slavikrds [6]

Answer:

  • <u>115 dB</u>

Explanation:

<u>1. Given equation:</u>

\beta =10log(\frac{I}{I_0})\\\\ I_0=10^{-12}W/m^2

<u>2. Given intensity:</u>

I=0.315W/m^2

<u>3. Decibels</u>

\beta =10log(0.315/10^{-12})\\ \\ \beta =10log(315,000,000,000)\\ \\ \beta =10(11.498)=114.98\approx 115

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Over the course of 3 days, Calvin spent 10 hours delivering newspapers. He spent the same amount of time each day delivering new
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