Find the median marks for the following distribution:
Classes
Number of students
0-10
2.
10-20
12
20-30
22
30-40
8
40-50
6

Answers

Answer 1

Answer:

10

Step-by-step explanation:

2+12+22+8+6=50

Median =50/5=10


Related Questions

Luci Lulu opened a cookie store in the mall. She found that the relationship between the price of a cookie, p, and the number of cookies sold, x, is given by the linear relationship x = −2000 p + 4000 . Find the maximum revenue Luci can make selling cookies in one day. Find the price she should sell the cookies to make the maximum revenue

Answers

Answer:

The maximum revenue Luci Lulu can make selling cookies in one day is $2,000.

The price Luci Lulu should sell the cookies to make the maximum revenue is $1.

Step-by-step explanation:

From the question, we have:

x = −2000p + 4000 ..................... (1)

Where;

x = number of cookies sold

p = price of a cookie, p, and the

Revenue function (R) can therefore be obtained as follows:

R = px ……………………….. (2)

If we substitute equation (1) into (2), we will have:

R = p(−2000p + 4000)

R = −2000p^2 + 4000p ……………… (3)

Differentiating equation (3) with respect to p and set it equal to zero, we have:

−4000p + 4000 = 0

Solving for p, we have:

4000 = 4000p

p = 4000 / 4000

p = 1

Therefore, this implies the price Luci Lulu should sell the cookies to make the maximum revenue is $1.

Substituting p = 1 into equation (3), we have:

R = (−2000 * 1^2) + (4000 * 1)

R = (−2000 * 1) + (4000 * 1)

R = −2000 + 4000

R = 2000

This implies that the maximum revenue Luci Lulu can make selling cookies in one day is $2,000.

The temperature in Anchorage, Alaska, is -13°C, and the temperature in Nome, Alaska, is -31°C. Which of the following is true?

A.
Anchorage's temperature = Nome's temperature
B.
Anchorage's temperature > Nome's temperature
C.
Anchorage's temperature < Nome's temperature

Answers

Answer:

B. Anchorage's temperature > Nome's temperature

Step-by-step explanation:

pls help me with this
Which fraction is equivalent to a repeating decimal?
A. 3/50
B. 11/100
C. 4/9
D. 7/8

Answers

Answer:

C.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

All of the others are equal to .06,.11, and .875 so its C

Which expression is equivalent to -9y + 17

Answers

Answer:

C. 17 - 15

Step-by-step explanation:

Answer:

Step-by-step explanation:

-9y + 17 is equivalent to the following:

17 - 9y  Only order in which the terms appear is different here

-9(y - 17/9) (This is just a regrouping of -9 + 17)

omg someone find tbe perimeter of this shape for me. ill give brainliest

Answers

Answer:

32

Step-by-step explanation:

18+14

32
The two lines mean that those sides of the triangle are equal so:
9+9+14= 32

At the fair, the ratio of males to females was 4:5. If there are 180 people at the fair, how mamy males are there?​

Answers

Answer:

80 males

Step-by-step explanation:

180 / 9 = 20

20 x 4 = 80

Answer:

the answer is 80 males

Step-by-step explanation:

4(males)+5(females)=9

180(everybody)/9=20

20×4=80 hope this helps

Can someone help me?

Answers

Answer:

x = 45

Step-by-step explanation:

'x' is the hypotenuse or the 'c' in the Pythagorean Theorem (a² + b² = c²)

27² + 36² = c²

729 + 1296 = c²

2025 = c²

√2025 = c

45 = c

Find the value of y when x=3

y=x+5

y= ?

Answers

i believe that y=8, (and there had to be more than 20 characters so ignore what’s in the parenthesis)

For which value 0 is the statement sin 40= cos 0 true ?

Answers

Answer:

50°

Step-by-step explanation:

sin 40° = cos 50°

Hope it helps you in your learning process.

pls help me!!

2. In this polygon, which angle is an exterior angle?


Answers

Answer:

b jwtvd vgakdbbfqbbbq8jrbw5rl17rgsndbgwy

9s+8=4s+13 If s represents the number of shells Susie found, which of the following stamens correctly describes the equation above

Answers

Answer:

s=1

Step-by-step explanation:

9s-4s=13-8

5s=5

s=1

Kala purchased a prepaid phone card for $25. Long distance calls cost 8 cents a minute using this card. Kala used her card only once to make a long distance call. If the remaining credit on her card is $21.48, how many minutes did her call last?

Answers

Answer:

44 minutes

Step-by-step explanation:

25.00-21.48=3.52

this means she used $3.52

which is 352 cents.

Each minute is 8 cents so 352/8 = 44

Anybody know this? Please only answer if you know.

Answers

Answer:

x intercept: 10

y intercept: -6

Step-by-step explanation:

x intercept: 10

y intercept: -6

What does -12(4+g)=?

Answers

Answer:

-48-12g

Step-by-step explanation:

Use the distributive property to get your answer

Answer:

-48-12g

Step-by-step explanation:

-12 x 4 = -48

-12 x g = -12g

Put it all together: -48-12g

Combine Like Terms : 5b - 2+4b+5

Answers

Answer:

=9b+3

hope this helps

Step-by-step explanation

You are thinking of hiring a security monitoring service. You can pay a flat rate of $55 per month or pay $210 per incident. You expect to average one incident per three months. Which plan will be cheaper for you?

a) Per incident

b) Flat rate

Answers

Answer:

Flat rate

Step-by-step explanation:

Per incident, you'll play 210 dollars

Flat rate, you'll pay 55 dollars per month

Based on the expected average

You'll either pay $210 for the incident or $165 (flat rate amount for 3 months)

Therefore, flat rate will be cheaper

Hope this helps!

Hey smart math people help me please

Answers

Answer: First off thats not how you ask for help, by calling us "smart math people" that could offend someone...Second off the answer is 10 because

Step-by-step explanation:

A^2 + B^2 = C^2

6^2 + 8^2 = C^2

36 + 64 = 100 square root that = 10

Answer: 10

Answer:

10

Step-by-step explanation:

[tex]a^{2} + b^{2} = c^{2}[/tex] : Pythagorean Theorem

[tex]6^{2} + 8^{2} = c^{2}[/tex] ⇒[tex]36+64=c^{2}[/tex]

[tex]36+64=c^{2}[/tex] ⇒ [tex]\sqrt{100} = \sqrt{c^{2} }[/tex]

10

Find the sum of the first 42 terms of the following series, to the nearest
integer.
2,7,12,...

Answers

Answer:

Step-by-step explanation:

Find the sum of the first 42 terms of the following series, to the nearest integer.

2,7,12

Solution

The sum is given by  

SUM_n=n/2*(a_1+a_n)

a_n=a_1+(n-1)d

a_1=2,   n=42,     d=5

The 42nd term is therefore given by  

a_42=2+(42-1)5=207

SUM_42=42/2*(2+207)=21*209=4389

The sum of the first 42 terms of the series, therefore, is 4389

If m∠NOP = 24 and m∠NOQ = 110, what is m∠POQ? Angle N O Q divided into two unequal angles by ray O P. A. 62 B. 86 C. 134 D. 156

Answers

Answer:

B. 86 degrees

Step-by-step explanation:

Given the following angles:

m∠NOQ = 110

m∠NOP = 24

Using the addition postulate:

m∠NOQ =  m∠NOP + m∠POQ

110 = 24 + m∠POQ

m∠POQ = 110 - 24

m∠POQ = 86

Hence the measure of m∠POQ is 86 degrees

Guys can you please solve this problem I’ve been trying to solve it for 40 minutes please begging

Answers

Answer:

2

Step-by-step explanation:

3 = 5x - 13 + 3x

3 + 13 = 5x + 3x

16 = 8x

16 ÷ 8 = 8x ÷ 8

2 = x

Answer:

[tex]5x - 13 + 3x = 3 \\ 8x = 3 + 13 \\ 8x = 16 \\ x = \frac{16}{8} \\ x = 2[/tex]

Last month, Diego's neighbors paid him to take care of their fish when they went on vacation. He spent $13 of his earnings on a book and $9 on some art supplies. Afterward, he had at most $10 left. How can you best describe how much Diego's neighbors paid him?

Answers

Answer:

here!<3

Step-by-step explanation:

A: 9 + 13 + 10 is equal to or less than C

B: 32 is equal to or less than C

Step-by-step explanation:

How I got A:

in order to solve this you have to add 9, 13, and 10.

don't solve it right away, but write every number out individually.

It says in the problem, "Afterward he had AT MOST $10".

With this we know we need a sign other than equal to.

if the amount was at most $10, we need to use equal to or less than.

I chose equal to or less than because it says AT MOST, so the amount he was pain will be equal to, or less than all of then numbers given to us added.

How I got B:

I added 9, 13, and 10.

The sum of these numbers is 32

C is our variable, because we don't know how much they paid him

32 is equal to or less than C

Hope this helps <3

A tool manufacturer has fix cost of $124.00 a day. It cost $1.00 to make a screwdriver. The company gets $3.00 per screwdriver sold. How many screwdrivers must be produced daily to break even?

Answers

Answer:

poop

Step-by-step explanation:

Describe a situation that is defined by the linear equation P = 40 + 22t. ASAP HELP

Answers

Answer:

Step-by-step explanation:

P could be the price for working as a dog sitter where you ask for $40 to be payed every time you show to work so you can clean the hair off your clothes at the cleaner after work, plus $22 for every hour t you work .

Help pleas brainliest promised if right

Answers

Answer:

78

Step-by-step explanation:

1300 times .06= 78
Answer:$78

Solve for x (28 POINTS)

Answers

P + S = 180

105 + x+65=180

x=10

Help plzzzzzzzzzzzzzz show work​

Answers

Answer:

x=0

Step-by-step explanation:

∵ △ABC~△AED

[tex] \frac{ AE }{ AB } = \frac{ED}{ BC} \\ \frac{4}{10} = \frac{8}{x + 20 } \\ 4x + 80 = 80 \\ 4x = 0 \\ x = 0[/tex]

I need the answer pls

Answers

Answer:

168 degrees

Step-by-step explanation:

Supplementary Angles : Two angles that add up to 180 degrees

m<S = 12

m<R= 180-12

m<R= 168

An someone help me please: (2x - 6) + 4(x - 3)

Answers

Answer:

6x - 18

Step-by-step explanation:

thats it simplified! hope it helps!

The length of a rectangular building is 4 feet more than 3 times the width. The perimeter is 84 feet. Find the width and length of the building.

Answers

Answer:

Width=9.5, Length=32.5

Step-by-step explanation:

Let x be the width of the rectangle,

The length is 4 feet more than 3 times the width,

The length= 3x+4

The perimeter is

2(x)+2(3x+4)=84

2x+6x+8=84

8x=76

x=76/8

x=9.5

The Width=9.5

Length= 3(9.5)+4=32.5

The Zika virus originally started with 3 people. The number of people infected doubles every 2 hours.



Part 1: Write an equation to model the situation.

Part 2: How many people are infected after 6 hours?

Part 3: How many people are infected after 2 days?

Answers

Answer:

Part 1: [tex]P(t)=3(1.4142)^t[/tex]

Part 2: There are 24 people infected

Part 3: P(48)=50,331,648

More than 50 million people are infected after 2 days

Step-by-step explanation:

Exponential Growth

The natural growth of some magnitudes can be modeled by the equation:

[tex]P(t)=P_o(1+r)^t[/tex]

Where P(t) is the actual amount of the magnitude, Po is its initial amount, r is the growth rate and t is the time.

We know the Zika virus started with Po=3 people infected. The number of people infected doubles every 2 hours, which means that for t=2 hours, P(2)=6, thus:

[tex]6=3(1+r)^2[/tex]

Dividing by 3:

[tex](1+r)^2=2[/tex]

Solving for 1+r:

[tex]1+r=\sqrt{2}[/tex]

1+r=1.4142

Part 1:

The equation to model the situation is:

[tex]\boxed{P(t)=3(1.4142)^t}[/tex]

Part 2:

After t=6 hours:

[tex]P(6)=3(1.4142)^6[/tex]

P(6)=24

There are 24 people infected

Part 3:

After 2 days, t=2*24 = 48 hours:

[tex]P(48)=3(1.4142)^48[/tex]

P(48)=50,331,648

More than 50 million people are infected after 2 days

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