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Lemur [1.5K]
3 years ago
8

The data below shows the survey result of 75 randomly selected students.

Mathematics
1 answer:
dmitriy555 [2]3 years ago
5 0

Chart relating to the question is attached below.

Answer:

349 students

Step-by-step explanation:

Based on the chart given, we can obtain the experimental probability or proportion for the travel plan of 75 students :

Proportion who would be traveling by car :

Number traveling By car / number of samples

p(car) = 23 / 75 = 0.30666

If total number of students = 1138

Using the proportion obtained from the sample, the number of students who would be traveling by car from the population would be :

= 0.30666 * 1138

= 348.98 students

= 349 students

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3 years ago
How can a conjugate be created from a complex number?
ratelena [41]
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5 0
3 years ago
Read 2 more answers
Suppose a certain outlet chain selling appliances has found that for one brand of stereo system, the monthly demand is 240 when
Doss [256]

Answer: Therefore the demand function can be given as;

q = -3/2p + 1590

Step-by-step explanation:

Given that at;

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$850 the monthly demand is 315. ....2

Since, the function is a linear function. The demand function would be of the form;

q = mp + c ....5

Where q = quantity demanded

p = price m = slope and c = intercept

Substituting conditions 1 and 2 to the equation.

240 = 900m + c. ...3

315 = 850m+ c ...4

Subtracting eqn 4 from 3

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m = -75/50

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Substituting m = -3/2 into equation 3;

We have,

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6 0
4 years ago
The gas tank is 20% full. At $3.00 per gallon of gas, find the cost to fill the tank. (1 gal = 231 in.3)
rewona [7]
The correct question in the attached figure

we know that

to fill the tank is required--------> 100%-20%--------> 80%
if 20% of the gas tank is-----------------> 288.75 gal
80% --------------------------------------> X gal
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if 1 gal----------------> cost $3
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the answer is
the cost to fill the tank is $3465

7 0
3 years ago
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