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qaws [65]
3 years ago
13

Aubrey was sorting books for the garage sale. she had 831 books and wanted to put them in 5 equal boxes. how many books would fi

t in each box. how many books would be leftover
Mathematics
2 answers:
igomit [66]3 years ago
8 0

So to find out how many books would fit into one box you would have to divide 831/5.

831/5 = 166

So 166 x 5 = 830

That means there would only be 1 book left.

Hope this Helps!!

lianna [129]3 years ago
6 0

she would need 166 boxes. there is a remainder of 1. one book wont fit in a box

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Among the four northwestern states, Washington has 51% of the total population, Oregon has 30%, Idaho has 11%, and Montana has 8
morpeh [17]

Answer:

Step-by-step explanation:

H₀ : The distribution of the sample agrees with the population distribution.

H₁ : the distribution of the does not agree with the population distribution.

Using the  Chi-square test statistics

we will compute the expected frequencies

Now expected frequency for Washington will be

Fe = Npi = 1000×51% = 5100

expected frequency for Oregon

Fe = Npi = 1000×30% = 300

expected frequency for Idaho

Fe = Npi = 1000×11% = 110

expected frequency for  Montana

Fe = Npi = 1000×8% = 80

The Chi=square test statistics is;

x² = ∑ [ (Fo - Fe)² / Fe )

now we substitute

Given our Fo ( 450 in Washington, 340 in Oregon, 150 in Idaho, and 60 in Montana) from the question

x² =  (450-510)²/510 + (340-300)²/300 + (150-110)²/110 + (60-80)²/80

x²= 31.9376

so the chi-square test statistics is 31.9376

Now the chi-square critical value

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d.f = k -1 = 4 - 1 = 3

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the chi-square critical value is 7.8147

Therefore chi-square test statistics 31.9376 is greater than the chi-square critical value 7.8147, so NULL HYPOTHESIS IS REJECTED at 5% significance.

There is sufficient evidence to warrant rejection  of the claim that the distribution of the sample agrees with the distribution of the state populations.

3 0
3 years ago
If 4 pairs of shoes cost $48, what is the cost for 7 pairs of shoes?
jonny [76]

Answer: $84

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4 0
3 years ago
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~~~ 30 POINTS ~~~
trasher [3.6K]
<span>1)   3x-2=x+10


</span><span>Now, lets solve this step-by-step.
</span><span>
3x - 2 = x + 10
-x             -x
</span><span>
</span><span>3x - x = 2x                                2x - 2 = 10
</span><span>
</span><span>2x - 2 = 10
</span>2x - 2+2 = 10+2          The inverse operation helps isolate the variable. 
<span>
2x = 12

2x/2 = 12/2

x = 12/2
x = 6</span><span>

Answer: x = 6

2) x + 4 = 19 - 2x </span>

We can solve this much faster

x + 4 = 19 - 2x
                  +2x

x+2x = 3x

3x + 4 = 19
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19-4 = 15

3x= 15
3x/3 = 15/3
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3) 
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8x - 20 = x + 15
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3 0
3 years ago
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Can someone help please
finlep [7]

Answer:

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3 0
2 years ago
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