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AlexFokin [52]
3 years ago
11

At lunch, Alice ate 3-8 of her sandwich. Later, for snack , she ate another 3-8 of the sandwich. write an additional sentence th

at shows how much of the sandwich Alice ate suppose Alice ate the same total amount of her sandwich at 3 different times instead of 2 write an additional problem that shows the amount she ate as a sum of 3 fractions.
Mathematics
1 answer:
otez555 [7]3 years ago
4 0
So you mean like 3/8 + 3/8 =6/8?
get back to me if its wrong

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Determine the value of the variable that makes the equation true. 12-b=12.5
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B = -.5

Step-by-step explanation:

If B is negative is cancels out the prexisting negative making it positive.

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If you travel for 2 hours at an average speed of 60 miles per hour, how far did you
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In one hour you travel 60 miles

In 2 hours you travel 120 miles

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8 0
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PLEASE HELP NOW ASAP!!!
IceJOKER [234]

She used the associative property which should only be used with positive numbers (sorry if it isn't the answer you're looking for)

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4. A<br> is an algebraic expression made by<br> adding or subtracting terms.
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4 0
3 years ago
Researchers measured the bone mineral desnsity of the spines of 94 women who had taken teh drug CEE. The mean was 1.016 g/cm2, a
Valentin [98]

Answer:

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We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find M as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96*\frac{0.155}{\sqrt{94}} = 0.0310

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The 95% confidence interval for the mean is between 0.985g/cm² and 1.047 g/cm².

6 0
3 years ago
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