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2 years ago

A survey of 100 high school students provided this

1 answer:

4 0

Probability helps us to know the chances of an event occurring. The probability that a randomly selected student is a junior is 0.35.

<h3>What is Probability?</h3>

Probability helps us to know the chances of an event occurring.

$\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}$

The probability that a randomly selected student is a junior will be,

P(Junior) = [(Number of Juniors)\(Number of total students)]

P(Junior) = 35/100 = 0.35

Hence, The probability that a randomly selected student is a junior is 0.35.

Learn more about Probability:

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Lesson 4-3 Dividing Mixed Numbers Practice and Problem Solving: A/B

muminat

Answer:

<h3>Reciprocals are: </h3>

1) 10 1/2 = 21/2

Reciprocal will be 2/21

2) 6 3/7 = 45/7

Reciprocal will be 7/45

3) 2 8/9 = 26/9

Reciprocal will be 9/26

4) 15 1/4 = 61/4

Reciprocal will be 4/61

5) 9 2/3 = 29/3

Reciprocal will be 3/29

6) 7 5/8 = 61/8

Reciprocal will be 8/61

<h3>Divide</h3>

7) 8/10 divide by 1 5/6

8/10 divide by 11/6

or 8/10 * 6/11

4/5* 6/11

24/55

8) 2 divides by 1 6/7

2 divides by 13/7

2 * 7/13

14/13

1 1/13

9) 3 3/5 divides by 2 1/4

18/5 divides by 9/4

18/5 * 4/9

8/5

1 3/5

10) 4 1/2 divides by 2 3/8

9/2 divides by 19/8

9/2 * 8/19

36/19

1 17/19

11) 5 5/6 divides by 3 1/6

35/6 divides by 19/6

35/6 * 6/19

35/19

1 16/19

12) 11/12 divides by 2 5/8

11/12 divides by 21/8

11/12 * 8/21

22/63

13) 1 9/13 divides by 3/8

22/13 divides by 3/8

22/13 * 8/3

176/39

4 20/39

14) 6 4/5 divides by 3 2/9

34/5 divides by 29/2

34/5 * 2/29

68/145

15) 9 2/3 divides by 6 8/9

29/3 divides by 62/9

87/62

1 25/69

<h3>Division problem</h3>

Width of patio = 5 2/3 feet

Area of patio = 36 5/6 sq. feet

Length will be: area /width

36 5/6 divides by 5 2/3

221/6 divides by 17/3

221/6 * 3/17

13/2

6 1/2 feet

Length is 6 1/2 feet, that means we can place the concrete patio on a 7 foot picnic table.

17) Area of mirror = 225 sq. inches

Width of mirror = 13 3/4 inches.

Length of mirror will be=area/ width

225 divides by 13 3/4

225 divides by 55/4

225 * 4/55

180/11

16 4/11

The width of mirror will be 16 4/11 feet. It is greater than 16 feet. Therefore mirror can't be fit in a space of 15 inches by 16 inches.

18) Total length of fabric = 16 1/5 yards

One fabric piece size= 5 2/5

Number of fabric pieces will be= total length/ 1 fabric length

16 1/5 divides by 5 2/5

81/5 divides by 27/5

81/5*5/27

There will be total 3 pieces of size 5 2/5 yards.

3 0

3 years ago

4 years ago a pint of milk

fenix001 [56]

Given-

Cost of milk 4 years ago = £1.05

To find-

Percentage increase in cost

Solution-

Increase in cost = £ ( 1.26 - 1.05 )

→ £ 0.21

Percentage increase :-

$\frac{0.21}{1.05} \times 100$

$→ 20$

Therefore, Percentage increase of the cost of milk over 4 years is <u>2</u><u>0</u><u>%</u> .

✍️ <em>By </em><em>Benjemin</em> ☺️

5 0

3 years ago

good evening! Can someone please answer this, ill give you brainliest and your earning 50 points. Would be very appreciated.

Sphinxa [80]

Answer:

From inspection of the diagram, the pattern is:

Step 1: 1² + 1

Step 2: 2² + 2

Step 3: 3² + 3

Let x = step number

Let y = total number of squares

Therefore, the equation that represents the relationship is:

y = x² + x

<u />

x² relates to the large square made up of small squares (top part of the image of each step)

x relates to the rectangle of small squares (bottom part of the image of each step)

y is the total number of small squares in the image of each step.

4 0

2 years ago

Read 2 more answers

60 seconds per minutes times 60 mintues per hour

Tanzania [10]

The answer is 12960000

8 0

3 years ago

Read 2 more answers

The total height of an office building b and the granite statue that stands on top of it g is 326.6 feet. The difference in heig

Zepler [3.9K]

Answer: The height of building is 311 feet and the height of statue is 15.6 feet.

Step-by-step explanation:

Let the height of the building be 'b' and the height of the statue be 'g'.

Then according to the question, we get the following equation

$b+g=326.6.......(1)\\b-g=295.4............(2)$

Now, add both the equations, we get

$2b=622\\\Rightarrow\ b=311$

Substitute the value of b in equation (2), we get

$311-g=295.4\\\Rightarrow\ g=311-295.4\\\Rightarrow\ g=15.6$

Hence, the height of building = 311 feet and the height of statue =15.6 feet.

7 0

3 years ago