3 years ago

Find the unit rate, please. 7 errors in 60 minutes.

Mathematics

1 answer:

EleoNora [17]3 years ago

8 0

Answer:

1 error / about 8 minutes and 30 seconds

Step-by-step explanation:

1/8.5 Divide the fraction by 7.

By dividing both numbers of the fraction, you are finding how many errors are in the number of minutes you make them.

Exact answer: 1/8.571428 repeated

Rounded answer: 1/8.56

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3 years ago

a seed company has a test plot in which it is testing the germination of a hybrid seed, They plant 50 rows of 40 seeds per row.

ziro4ka [17]

Answer:

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Step-by-step explanation:

x P(x) $x \times P(x)$ $x^2 \times P(x)$

33 0.02 0.66 21.78

34 0.06 2.04 69.36

35 0.1 3.5 122.5

36 0.2 7.2 259.2

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1 36.86 1360.9

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Standard deviation = $\sum x^2P(X)=1360.9$

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