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Mnenie [13.5K]
3 years ago
10

A movie theater sells adults' tickets and children's tickets. 100 adults' tickets and 80 children's tickets sell for $1,020 tota

l. • 60 adults' tickets and 40 children's tickets sell for $530 total. What is the cost of each children's ticket? dollars​
Mathematics
1 answer:
Soloha48 [4]3 years ago
4 0

Answer:

100

Step-by-step explanation:

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2. A complete set of a grade school uniform requires 1 3/4 meters of white cloth
Andrei [34K]

Answer:

61.25 M

Step-by-step explanation:

the question is trying to mislead you with the blue amount, you are only looking for the amount of white needed.

this means you multiply 1.75 (1 3/4) times 35 sets, getting you 61.25 M

7 0
3 years ago
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GM EVERYONE IT'S ALMOST FRIDAYYYYY!!
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Answer

Good morning, I loveeeee FRIDAYSSSSS!!!!

Step-by-step explanation:

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3 years ago
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The amount of time all students in a very large undergraduate statistics course take to complete an examination is distributed c
Anestetic [448]

Answer:

a) The mean is \mu = 60

b) The standard deviation is \sigma = 9

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 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.

The probability a student selected at random takes at least 55.50 minutes to complete the examination equals 0.6915.

This means that when X = 55.5, Z has a pvalue of 1 - 0.6915 = 0.3085. This means that when X = 55.5, Z = -0.5

So

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

-0.5 = \frac{55.5 - \mu}{\sigma}

-0.5\sigma = 55.5 - \mu

\mu = 55.5 + 0.5\sigma

The probability a student selected at random takes no more than 71.52 minutes to complete the examination equals 0.8997.

This means that when X = 71.52, Z has a pvalue of 0.8997. This means that when X = 71.52, Z = 1.28

So

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

1.28 = \frac{71.52 - \mu}{\sigma}

1.28\sigma = 71.52 - \mu

\mu = 71.52 - 1.28\sigma

Since we also have that \mu = 55.5 + 0.5\sigma

55.5 + 0.5\sigma = 71.52 - 1.28\sigma

1.78\sigma = 71.52 - 55.5

\sigma = \frac{(71.52 - 55.5)}{1.78}

\sigma = 9

\mu = 55.5 + 0.5\sigma = 55.5 + 0.5*9 = 55.5 + 4.5 = 60

Question

The mean is \mu = 60

The standard deviation is \sigma = 9

6 0
2 years ago
WILL GIVE BRAINLIEST AWARD! THANKS AND STARS, <br><br> What is the length of the segment EH?
MakcuM [25]

Answer:

The answer is 25.

Step-by-step explanation:

6 0
3 years ago
Write an equation perpendicular to the line y = 3x + 5 through the point (6, -5). State your answer as y=mx+b.
liubo4ka [24]

Answer:

y=(-1/3) x - 3

Step-by-step explanation:

A line that is perpendicular to it has a slope that is an opposite reciprocal, which in this case is -1/3.  Now you use point slope form which is y-y1=m(x-x1) that would be y+5=-1/3(x-6).  Distribute the -1/3 and get y+5= -1/3 x+ 2.  Subtract 5 from both sides and get y=-1/3 x - 3

3 0
3 years ago
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