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3 years ago

7

Number of graduates: suppose 75% of the graduating class in a certain high school goes on to college. if 270 students from this

graduation class are going on to college, how many students are from this graduating class?

1 answer:

professor190 [17]3 years ago

6 0

270 x 0.75 = 202.5 students, so say 203 students

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Solve these equation<br>|2x+1|=|x-2|

bagirrra123 [75]

Step-by-step explanation:

2x+1x= -2+1

3x= -1

3x÷3= -1÷3

x=|-3.3333..|=3.33333.. or

$\frac{1}{3}$

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erastova [34]

Answer: Can you make the question a bit clear?

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MissTica

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2 years ago

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admission to a carnival is $5 and each game at the carnival cost $0.85. you have $15 to spend on admission and games. what is th

aleksandrvk [35]

So, you have $15 in total to spend.

1. Subtract your admission fee. 15-5=10
2. Divide 10 by .85 to get the number of games you were able to play. 10 divided by .85 = 11.76
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2 years ago

A test is normally distributed with a mean of 70 and a standard deviation of 10. Todd scores a 55 on the test. Select the answer

Jlenok [28]

Answer:

Todd's Z-score is - 0.27

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<u><em>Step(i)</em></u>:-

Given data A test is normally distributed with a mean of 70 and a standard deviation of 10.

<em>Mean of the population 'μ' = 70 </em>

<em>Standard deviation of the Population ' σ ' = 10</em>

<em>let 'x' be the random variable in normally distributed</em>

<u><em>Step(ii)</em></u>:-

<em>Given raw score 'x' = 55</em>

Todd's Z-score

$Z = \frac{x-mean}{S.D}$

$Z = \frac{55-70}{55}$

Z = -0.27

<u><em>Final answer</em></u>:-

<em>Todd's Z-score is - 0.27 </em>

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3 years ago