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alina1380 [7]
2 years ago
13

Josue needs 2 1/4 cups of flour to make a batch of chocolate chip cookies. He needs to make 5 batches for the bake sale. How man

y cups of flour does Josue need for 5 batches of cookies?
A 10 1/4
B. 9/20
C. 7 1/4
D 11 1/4
Mathematics
2 answers:
dalvyx [7]2 years ago
7 0

The answer is D) 11 1/4 cups of flour.

Explanation:

Simply, multiply 2 1/4 cups by 5

2 1/4*5=11 1/4

Do you think you could give me brainliest? If not, I totally understand.

Black_prince [1.1K]2 years ago
6 0
I think its D . 11 1/4
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The standard deviation of what?  Percentiles from any normal distribution look the same, just like the unit normal, so you can't really determine the standard deviation of the original scores. You can determine a z score from a percentile.  That tells us the number of standard deviations, positive or negative, a given score is away from the mean score.  It's a normalized test result.

Your percentile is (a hundred times) the probability that another score is less than your score.  We have a normal distribution, so that probability is the integral of the standard normal from negative infinity to our normalized score.  

Let's call the percentile rank p, already scaled between zero and 1.

p=.5 corresponds to a z score z=0 because the fiftieth percentile means we got an exactly average score, 0 standard deviations away from the mean.

We know 68% of the probability will be between -1 and +1 standard deviation.  So z=-1 corresponds to p=.5-.68/2=.16 and
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Similarly, 95% of the probability will be between -2 and +2 standard deviations.  So z=-2 corresponds to p=.5-.95/2=.025 and
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That's about the list I can do off the top of my head. I think three standard deviations is 99.7%. For the rest we just consult a z table or integrated normal table.  We find p in the body of the table (maybe |.5-p| depending on the table) and then the column headings tell us our z score.

In this modern age, your computer can do this for you quickly

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3 years ago
Which shows the graph of the line with equation y = -2x + 1?
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This is what the graph looks like

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2 years ago
In geotown,there are 210 teenagers that own a tablet. this is at least 4/5 of all teenagers that live in geotown. what is the ma
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3 years ago
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Please help me! I'm having trouble solving this! In the △PQR, PQ = 39 in, PR = 17 in, and the height PN = 15 in. Find QR. Consid
Vlad [161]

Answer: 44

Step-by-step explanation:

we will find RN and NQ, then add together to give us RQ.

To find RN;

RP= 17 PN = 15 and RN =?

using pythagoras theorem,

adj^2 = hyp^2 - opp^2

RN^2 = RP^2 - PN^2

?^2 = 17^2 - 15^2

?^2 = 17^2 - 15^2

?^2 = 289 - 225

?^2 = 64

? = √64

? = 8

RN=8

To find NQ,

PN = 15 PQ=39 and NQ=?

using pythagoras theorem

NQ^2 = PQ^2 - PN^2

?^2 = 39^2 - 15^2

?^2 = 1521 - 225

?^2 = 1296

? = √1296

? = 36

NQ= 36

RQ = RN + NQ

RQ= 8 + 36

RQ=44

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3 years ago
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The small dish costs $2 each and the large dish costs $4 each,

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