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Misha Larkins [42]
1 year ago
15

How to solve this problem

Mathematics
1 answer:
uranmaximum [27]1 year ago
4 0
The answer will be C. I hope this helped you! ^^
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Aisha had a of ribbon. She used 15% of the ribbon to decorate cards and had 17 feet of ribbon left. She then used 20% of the rem
Tcecarenko [31]

Answer:

The total amount of ribbon she had was 35 feet of ribbon.

Step-by-step explanation:

I hope this is one of the answers and I hope this helps you.  Stay safe:)

3 0
2 years ago
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Assume that females have pulse rates that are normally distributed with a mean of u = 75.0 beats per minute and a standard devia
Elan Coil [88]

Answer:

36.88% probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 75, \sigma = 12.5

Find the probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

This is the pvalue of Z when X = 81 subtracted by the pvalue of Z when X = 69.

X = 81

Z = \frac{X - \mu}{\sigma}

Z = \frac{81 - 75}{12.5}

Z = 0.48

Z = 0.48 has a pvalue of 0.6844

X = 69

Z = \frac{X - \mu}{\sigma}

Z = \frac{69 - 75}{12.5}

Z = -0.48

Z = -0.48 has a pvalue of 0.3156

0.6844 - 0.3156 = 0.3688

36.88% probability that her pulse rate is between 69 beats per minute and 81 beats per minute.

3 0
3 years ago
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Need help with this quetsion plz quick
ioda
Line 1 is in q1 and line 2 is q4
3 0
3 years ago
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What is the area of the figure? I give brainliest and thanks! :)
Alex17521 [72]

Answer:

ok I would give answer that is 85.5mi^2

7 0
3 years ago
1/4 cups is how much pints
oksano4ka [1.4K]
First we need the equivalence between cups and pints to solve this question, the equivalence is:
1 cup is 0.5 pint
So we can use a rule of three simple, direct proportion to solve the problem, we change the fraction 1/4 = 0.25 to ease calculations:
1 cup ----> 0.5 pint
0.25 cup ---> x

x = (0.25)(0.5)/1
x = 0.125

Therefore 1/4 cups is equivalent to 0.125 pints
5 0
3 years ago
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