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Archy [21]
3 years ago
9

In a sample of 50 randomly selected students at a school, 38 students eat breakfast every morning. There are 652 students in the

school. using these results, predict the number of students that eat breakfast.
A. 76
B.123
C.247
D.496
Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
5 0
For the sample:
\frac{38}{50} = 0.76 = 76\%

Applying this to the whole population:

652 \times \frac {38}{50} = 495.52

Since we can't have "0.52 of a person" we roudn to the neares whole, or 496.
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18 milkshakes
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7 0
2 years ago
C<br> On Wednesday they made $5.50 How much does Zara get?<br><br> Please help?
Natalija [7]

Answer

Zara gets $5.50

Step-by-step explanation:

7 0
2 years ago
A toll collector on a highway receives ​$8 for trucks and ​$5 for sedans. At the end of a 3​-hour ​period, she collected ​$208.
Vilka [71]

Answer:

The number of trucks and sedans can be

(0 trucks ,26 sedans)

(8 trucks ,21 sedans)

(24 trucks ,11 sedans)

(25 trucks ,1 sedans)

(32 trucks ,6 sedans)

(16 trucks ,16 sedans)

Step-by-step explanation:

Given:

The  cost for trucks =$5

The cost for sedans  =$8

The total amount collected = $208

To Find:

Number of trucks and sedans passed through the toll booth =?

Solution:

Let the number of trucks be x and the number of sedans be y

Then

5x + 8y = 208-------------------------------(1)

By Trail and error method

5(0) + 8(26) = 208

5(8) + 8(21) = 208

5(24) +8(11) =208

5(25) + 8(1) = 208

5(32) + 8(6) =208

5(16) + 8(16) = 208

8 0
3 years ago
On Monday morning the temperature was 38°F, but by the afternoon the temperature had risen 22°F. On Tuesday morning the temperat
Anika [276]
The temperature on Tuesday afternoon is below 38 degrees Fahrenheit. As it states in the question the temperature on Tuesday morning was 27 degrees Fahrenheit and rose 10 more degrees at noon. Which makes is 37 degrees Fahrenheit at noon on Tuesday. You get this by taking 27 degrees and adding 10 degrees.  
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3 years ago
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3 0
2 years ago
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