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IRINA_888 [86]
3 years ago
15

Solve -3 + c = 15 for c. plzzz help

Mathematics
2 answers:
notka56 [123]3 years ago
8 0
Hello1

I believe that c would be the equivalent of 18. C would be 18 because -3+c=15 is the equivalent of 18-3 which is 15. So the answer would be C=18.

(-3+18=15)

I hope this helps!
densk [106]3 years ago
3 0
C=15+3. Combine like terms. C=18.
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(2/3)(2400) = 1600

 

$1600

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3 years ago
a group of students was randomly divided into two subgroups. one subgroup took a test in the morning, and the other took the sam
Tom [10]

The conclusion is P(pass l morning) = 0.56

P(pass l afternoon) = 0.72

Conclusion: a student taking the test in the afternoon has a greater probability of passing than a student taking the test in the morning.

<h3>What are the probabilities?</h3>

Probability is the odds that a random event would happen. The odds that the event would happen lies between 0 and 1. The closer the probability is to one, the more likely it is for the event to happen.

P(pass l morning) = number of students who took the test in the morning and passed / total number of students that took the exam in the morning

28 / 50 =  0.56

P(pass l afternoon) = number of students who took the test in the afternoon and passed / total number of students that took the exam in the afternoon  = 36 / 50 = 0.72

To learn more about probability, please check: brainly.com/question/13234031

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8 0
2 years ago
Latonya swims 50 meters in 1/2 minute, what is the slope ?
weqwewe [10]

Answer:

This slope means for every 1 minute Latonya swims 100 meters.

Step-by-step explanation:

5 0
2 years ago
Given a standardized normal distribution (with a mean of O and a standard deviation of 1), determine the following probabilities
Mkey [24]

Answer:

a) P(Z > 1.09) = 0.1379

b) P(Z < -0.22) = 0.4129.

c) P(Z < -1.96) = 0.025, P(Z > -1.96) = 0.025

d) Z = 1.4

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

a. P(Z > 1.09)

This is 1 subtracted by the pvalue of Z = 1.09.

Z = 1.09 has a pvalue of 0.8621

1 - 0.8621 = 0.1379, so

P(Z > 1.09) = 0.1379

b. P(Z < -0.22)

This is the pvalue of Z = -0.22.

Z = -0.22 has a pvalue of 0.4129. So

P(Z < -0.22) = 0.4129.

c) P(Z < -1.96) or P(Z > -1.96)

Z = -1.96 has a pvalue of 0.025. So

1 - 0.025 = 0.975

P(Z < -1.96) = 0.025

P(Z > -1.96) = 0.025

d. What is the value of Z if only 8.08% of all possible Z-values are larger?

Z with a pvalue of 100 - 8.08 = 91.92 = 0.9192, so Z = 1.4

3 0
2 years ago
Help me please!!!!!!!! Numbers 9,10,and 12
Inga [223]

Answer:

Answer for 9: C. 36

Answer for 10: G. 6

Answer for 12: F

Step-by-step explanation:

8 0
2 years ago
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