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2 years ago

13

A school has an enrollment of 24 students, 8 of the students are girls. Express the fraction of students who are boys in simples

t forms.

1 answer:

ololo11 [35]2 years ago

7 0

Answer:

2/3

Step-by-step explanation:

If girls are 8 then boys will be 24-8=16

16/24=2/3

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ivolga24 [154]

ANSWER TO QUESTION 1

Just substitute

$y=8$ in to $g(y)=2y+7$

That means everywhere we see

$y$ we replace it with $8$ .

This gives us,

$g(8)=2(8)+7$

$g(8)=16+7$

$g(8)=23$

The correct answer is B

ANSWER TO QUESTION 2

We first find the area of the sitting area.

From the diagram, the sitting area has the following dimension.

$Length=700ft$

and

$Width=8ft$ .

Since the sitting area is rectangular in shape, we use the formula for finding the area of area of a rectangle.

That is ,

$A=lw$ .

We substitute the dimension to obtain,

$A=525\times 700$

$\Rightarrow A=367,500ft^2$

Since each person occupies 2 square feet, we divide by 2

$A=183,750$

The correct answer is C

ANSWER TO QUESTION 3.

The question 2and 3 are the same.

6 0

3 years ago

Read 2 more answers

Consider today's stock listing for Enam Telecom, shown below. 52 wk High 52 wk Low Symbol Div. Close Net Change 122.86 64.77 ENM

docker41 [41]

Answer:

B. $0.72

Step-by-step explanation:

Here is the stock listing for Enam Telecom

52 wk high is 122.86

52 wk low is 64.77

Div. is 3.45

Close is 99.14

Net change is 4.74

From the question the lowest price which was 64.77 was 48 days ago.

therefore net change in value is:

Close - lowest price:

99.14 - 64.77 = 34.37

Since change is in 48 days,

the average change per day is:

Total change / number of days = 34.37/48 = 0.716

This answer is approximately 0.72

Therefore average change per day is 0.72

3 0

3 years ago

HELP I DONT GET DILATION!!

katrin [286]

The answer is a.......

5 0

3 years ago

The perimeter of the triangle is 15.7 inches, so the equation to solve is 2a + b = 15.7.

zheka24 [161]

Answer:

a=7.85-1/2^b

Step-by-step explanation:

2a=15.7-b Move variable to the right side and change its sign

2a=15.7-b Divide both sides of the equation by 2

a=7.85-1/2^b The final solution for a is

4 0

3 years ago

A researcher wants to determine whether the number of minutes adults spend online per day is related to gender. A random sample

suter [353]

Answer:

The expected frequency for the cell E2,2 is = 33

Step-by-step explanation:

The given data is

Gender | 0-30| 30-60| 60-90| 90+ Totals

Male | 23 | 35 | 76 | 46 180

<u> Female | 31 | 42 | 46 | 16 135 </u>

<u>Totals 54 77 122 62 315 </u>

<u />

The expected frequency for the cell E2,2 is :

Expected for the (30-60 box for females) = Total of (30-6)/ (total )* females

= ( 77/315)135= 33

Here p= 77/315 and n= 135

therefor X= pn = 33

χ²= (33-42)²/33= 2.455 ( for the single value of E2,2=33)

Expected for the (30-60 box for males) = Total of (30-6)/ (total )* males

= ( 77/315)180= 44

χ²= (44-42)²/44= 0.09

The critical region is χ² (0.05) 3 ≥ χ²= 11.34

Let the null and alternate hypothesis be

H0:the number of minutes spent online per day is not related to gender

against

Ha: the number of minutes spent online per day is related to gender

The single value of χ² for E2,2 = 2.45 is less than the critical value of 11.34.

6 0

2 years ago