3 years ago

Robert is writing a paper for language arts class. He can write of a page in of an hour. At what rate is Robert writing?

1 answer:

6 0

He writes one page every hour

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galina1969 [7]

B + b + b + b + b + 2b = 7b (add all the variables up )
7 x 10 = 70 ( since b = 10 substitute)

8 0

3 years ago

Brums [2.3K]

Answer:

Please see attachment

Step-by-step explanation:

Please see attachment

5 0

3 years ago

mamaluj [8]

Answer:

356

Step-by-step explanation:

We are given that p=0.7, and a 90% confidence interval. Also, we know the margin of error to be 0.04, the sample size is calculated as:

#The sample size is calculated as:

$ME=z_{\alpha/2}\sqrt\frac{p(1-p)}{n}}\\\\0.04=1.645\sqrt\frac{0.7(1-0.7)}{n}\\\\n=\frac{0.7\times 0.3}{(0.04/1.645)^2}\\\\n=355.17\approx 356$

Hence, at least 356 apples must be sampled to get a true proportion with the 4% ME.

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3 years ago

Lostsunrise [7]

Answer:

8.75 miles.

Step-by-step explanation:

1.9 miles + 6.85 miles = 8.75 miles.

4 0

4 years ago

Temka [501]

Answer:

-4.33333333333

Step-by-step explanation:

3 0

3 years ago