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zubka84 [21]
4 years ago
8

5.23y+3·(2.7−1.6y) simplify

Mathematics
1 answer:
vampirchik [111]4 years ago
5 0

Answer:

0.43y + 8.1

Step-by-step explanation:

5.23y + 8.1 - 4.8y

5.23y - 4.8y + 8.1

0.43y +8.1

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The number they would count is \approx 0.49\cdot10^{-2}\ \%}

Step-by-step explanation:

One mole is equal to 6.02214076x10^23 particles. In order to know the number counted by every human on Earth we simply multiply the number of humans times the count a "good counter" can achieve, 4x10^9x7.44x10^9 (for USA, change to 4x10^12 if you use de British English definition). Thus:

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6 0
3 years ago
two sides of a rectangular fence are 5 5/ 8 feet long. the other two sides are 6 1/4 feet long. what is the perimeter
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