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zhannawk [14.2K]
3 years ago
7

Matt's Bikes rents bikes for $16 plus $3 per hour. Carlos paid $31 to rent a bike. For how many hours did he rent the bike?

Mathematics
1 answer:
ipn [44]3 years ago
6 0

Answer:

5 hours

Step-by-step explanation:

16+3x=31

-16        -16

3x=15

15/3=5

x=5

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The ___________ is a measure of the goodness of fit of the estimated regression equation. It can be interpreted as the proportio
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Step-by-step explanation:

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How do you solve (7-2)/5 step by step
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7 - 2 = 5

5 / 5 = 1

The answer would be 1.
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Write the equation of the line that passes through (7,-4) and (-1,2) in slope-intercept form
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2-(-4)
--------= 6
-1-7 ---= 3/4
8
y=3/4x
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-4=21/4+b
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3 years ago
As quality control manager at a raisin manufacturing and packaging plant, you want to ensure that all the boxes of raisins you s
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Answer:

Step-by-step explanation:

The population average number of raisins per box is 30.

The type of statistical analysis to be run here is the inferential statistical analysis and its assumptions include normality, linearity and equality of variance.

Null hypothesis: Average number of raisins per box is 30: u = 30

Alternative hypothesis: Average number of raisins per box is not 30: u ≠ 30

To perform a two tailed single sample test, we have

z statistic = (the sample mean - hypothesized mean) / (SD/√n)

sample mean = 28.05, SD = 3.87 hypothesized mean = 30 n = 36

Thus, we have 28.05 - 30 / (3.87/√36)

= -1.95 / (3.87/6)

= -1.95 / 0.645

= -3.023

we say this is a left tailed test and use the negative z table

where -3.02 = 0.0013

To determine whether the average number of raisins per box differs from the expected 30.

Using p < 0.05, since the observed value 0.0013 is less than 0.05, we conclude the the average number of raisins per box differs from the expected 30.

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3 years ago
When you are trying to find the mean in a dot plot do you want to use the number of dots of the actual number underneath of the
yuradex [85]

The number of dots tells us how many times we need to add the actual number underneath the dots. So you need to use both.

<h3>Which number should you use for the mean?</h3>

Let's suppose we have the next set:

{2, 2, 2, 4, 5, 5, 6}

If you graphed it in a dot plot, then you will have:

  • 3 dots above the number 2.
  • 1 dot above the number 4.
  • 2 dots above the number 5.
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A total of 7 dots.

To find the mean, we just compute:

M = \frac{2 + 2 + 2 + 4 + 5 + 5 + 6}{7} = 3.7

So the number of dots tells us how many times we need to add the actual number underneath the dots. In conclusion, to find the mean you need to use both, the number of dots and the number underneath.

If you want to learn more about dot plots:

brainly.com/question/15853311

#SPJ1

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