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sineoko [7]
3 years ago
14

The admission fee at an amusement park is $1.50 for children and $4 for adults. On a certain day, 362 people entered the park, a

nd the admission fees collected totaled $1,018 dollars. How many children and how many adults were admitted?
Mathematics
1 answer:
Dmitry [639]3 years ago
3 0

Answer:

children = 172  adults = 190

Step-by-step explanation:

x= 172  y=190

1.5x+4y = 1018

x+y=362

4x+4y=1448

-1.5x-4y=-1018

2.5x=430

x=172

1.5(172) + 4y =1018

258 + 4y = 1018

4y = 760

y = 190

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3 years ago
Do one of the​ following, as appropriate.​ (a) Find the critical value z Subscript alpha divided by 2​, ​(b) find the critical v
aliya0001 [1]

Answer:

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Step-by-step explanation:

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The t distribution or Student’s t-distribution is a "probability distribution that is used to estimate population parameters when the sample size is small (n<30) or when the population variance is unknown".

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