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3 years ago

10

A jet plane is traveling at 840 km/h at 37,000 ft between NY and SF. What equation shows the relationship between total kilomete

rs traveled (m), time spent traveling (t), and the plane's speed (s)?

1 answer:

fgiga [73]3 years ago

7 0

What equation shows the relationship between total kilometers traveled (m), time spent traveling (t), and the plane's speed (s)?

m = t * s

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(2(n+1)-1)^2-(2n-1)^2 simplified

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Answer: 8n

Let's simplify step-by-step.

(2(n+1)−1)2−(2n−1)2

Distribute:

=4n2+4n+1+−4n2+4n+−1

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2 years ago

Luis was worried about his Spanish final exam grade. The test had 200 questions, and he got

rodikova [14]

Answer:

Luis:

$\frac{175}{200} \times 100\% = 87.5\%$

Marina:

$\frac{130}{150} \times 100\% = 86.6\%$

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2 years ago

the US Census found at the population per square mile in the state rose from 128.7 to 191.3 during the last 10 years. By how muc

rewona [7]

Answer:

The population growth is 6.26 per square mile per year

Step-by-step explanation:

We are given

he US Census found at the population per square mile in the state rose from 128.7 to 191.3 during the last 10 years

So,

Initial population =128.7

Final Population =191.3

Total time =10 years

now, we can find population grow per year

$=\frac{final-initial}{T}$

now, we can plug values

$=\frac{191.3-128.7}{10}$

$=6.26$

So,

The population growth is 6.26 per square mile per year

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3 years ago

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