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slava [35]
2 years ago
7

At the college entrance exam, a candidate is admitted according to whether he has passed or failed the test. of the candidates w

ho are really capable, 80% pass the test and of the incapable, 25% pass the test. Given that 40% of the candidates are really capable, then the proportion of the really capable student who can pass the test to the total student who can pass is about
a)70%
b)75%
c)73%
d)68%​
Mathematics
2 answers:
katrin2010 [14]2 years ago
4 0
I think it would be B
Nostrana [21]2 years ago
4 0
At the college entrance exam, a candidate is admitted according to whether he has passed or failed the test. of the candidates who are really capable, 80% pass the test and of the incapable, 25% pass the test. Given that 40% of the candidates are really capable, then the proportion of the really capable student who can pass the test to the total student who can pass is about
a)70%
b)75%
c)73%
d)68%
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Divide a 5-inch line into two parts so that one part (a) 2 1/4 inches shorter than the other; (b) 3 times the other.
Ilia_Sergeevich [38]
Part a), solve this system of equations:
x + y = 5
x - y = 2.25
2x = 7.25
x = 3.625
y = 1.375

part b), solve this system of equations:
x + y = 5
x = 3y
y = 1.25
x = 3.75
3 0
3 years ago
Read 2 more answers
Score Frequency
RUDIKE [14]

Scores on an AP Exam at a local high school are recorded in the table. What was the average score?

Answer: D) 4.266 is correct

Explanation:

We are given the below frequency table:

Score Frequency

1         |         0

2        |         3

3        |         4

4        |        16

5        |       22

Let's denote the score by x and frequency by f.

The average formula is:

Average=\frac{\sum fx}{\sum f}

                    =\frac{(1\times0) + (2\times3)+(3\times4) +(4\times16) + (5\times22)}{0+3+4+16+22}

                    =\frac{0+6+12+64+110}{45}

                    =\frac{192}{45}=4.267

Therefore, the average score was 4.267

Hence the option D) 4.266

7 0
3 years ago
1. In AABC, if a = 8, b = 2, and c = 7. What is the value of cos C?
jenyasd209 [6]
I’m a little confused do you have a picture I could solve for cos then
4 0
3 years ago
If a line of one billion people standing shoulder to shoulder stretches 420,334 miles what is the average shoulder width in feet
V125BC [204]

Answer:

2.21936352 feet

Step-by-step explanation:

420334*5280 (thats feet in a mile) divided by 1000000000

5 0
3 years ago
Read 2 more answers
1 Which type of data is best represented using a line plot?
irakobra [83]

Answer:

#1) D frequency data that can be plotted on a number line ; #2) A Sarah read twice as many chapters Wednesday as Monday, C Sarah read more than four chapters on two days, F Sarah read at least three chapters on four days, and H The total number of chapters Sarah read on the weekend was the same as the total number she read on the weekdays.

Step-by-step explanation:

#1) A line plot shows the frequencies of data.  It is displayed over a number line; this makes the best choice for the answer "frequency data that can be plotted on a number line."

#2) We can see that Sarah read 2 chapters on Wednesday and 1 chapter on Monday.  This is twice as many chapters.

She read more than 4 chapters on both Saturday and Sunday.

She read 3 or more chapters on Tuesday, Friday, Saturday and Sunday.

The total number of chapters she read on the weekend was 5+6 = 11.  The total number of chapters she read on the weekdays was 1+3+2+2+3 = 11.  These are the same.

4 0
3 years ago
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