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snow_lady [41]
3 years ago
7

Scott likes to run long distances. He can run 20 km in 85 minutes. He wants to know how many minutes (m) it will take him to run

52 km at the same pace.
Which proportion could Scott use to model this situation?
Please choose from one of the following options.

m/20=85/52

m/85=52/20

Solve the proportion to determine how long it will take Scott to run 52 km.
Mathematics
1 answer:
gtnhenbr [62]3 years ago
4 0
You wanna 
divide 85 and 52 
because he can run 20 KM in 85 min 
and he wants to see how long it takes him to run 52 KM
So the first one is correct
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Answer:

-7

Step-by-step explanation:

  1. Re-write: -3 - 4
  2. -3 - 4 = -7

I hope this helps!

8 0
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Select all of the following statements that are true:
Maurinko [17]

Answer:

B. You shouldnt take a random sample of more than 5% of the population size.

Step-by-step explanation:

B. You shouldnt take a random sample of more than 5% of the population size. This is True, so as to avoid the research analysis to be more complex to interpret and analyzed

However, the following are not true statements:

A. Random samples only generate unbiased estimates of long-run proportions, not long-run means. This is False, as there may be sampling error, when picking the sample, which will lead to bias estimates in the long run proportions

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D. If this question is voted out, the alternate option is "larger samples are always better than smaller samples, regardless of how the sample was collected." This is False, larger samples are not always better than smaller samples. In fact, they are often difficult to analyze and interpret.

E. Nonrandom samples are always poor representations of the population: This is False, depending on the expected outcome of the research study. Some research studies required the research to use Nonrandom samples to reach verifiable conclusion.

8 0
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Step-by-step explanation:

1 batch= 2/3 cups

<u>2 batches</u>=4/3 cups or 1 and 1/3 cups

<em>1/2 batch</em>= 1/2 of 2/3= 1/3 cups

2 batches+1/2 batches= 1 and 1/3 cups+1/3 cups

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3 0
3 years ago
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