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Blababa [14]
3 years ago
12

Rs=5y+2 , st=2y+3 , rt=12y-15 what is the value y

Mathematics
1 answer:
Likurg_2 [28]3 years ago
8 0

Answer:

6

Step-by-step explanation:

5y + 2 +2y + 3 = 12 - 15

7y + 5 = 12y - 15

7y + 20 = 12y

20 = 5

6

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The time college students spend on the internet follows a Normal distribution. At Johnson University, the mean time is 5 hrs wit
netineya [11]

Answer:

The probability that the average time 100 random students on campus will spend more than 5 hours on the internet is 0.5

Step-by-step explanation:

We are given that . At Johnson University, the mean time is 5 hrs with a standard deviation of 1.2 hrs.

Mean = \mu = 5 hours

Standard deviation = \sigma = 1.2 hours

We are supposed to find the probability that the average time 100 random students on campus will spend more than 5 hours on the internet i.e. P(X>5)

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

Z=\frac{5-5}{1.2}

Z=0

P(X>5)=1-P(X<5)=1-P(Z<0)=1-0.5=0.5

Hence the probability that the average time 100 random students on campus will spend more than 5 hours on the internet is 0.5

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3 years ago
How May I Draw My number Line And Where Would My Numbers Go?
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As for the number line simply use 10ths: 1/10, 2/10, 3/10 ... and input 6/10 and 5/10 in the appropriate areas.
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4 years ago
You have a coupon for a restaurant. You save $3 on a meal. What was the original cost of the meal?
Zanzabum
If $3 was 25% of the original price then 3*4 = $12
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Answer:

I don't understand your question but thanks for the points ;) Kinda sucks when someone does it to you, right? Maybe you should stop commenting it on other people's questions so they can get the help they need

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