1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SashulF [63]
4 years ago
15

Kendra was asked to find the number of students who planned to attend the evening symphony performance. She was told that 40 per

cent of the 50 students planned to attend. Kendra’s work is shown below.

Mathematics
1 answer:
asambeis [7]4 years ago
3 0

Answer:

Kendra should of divided by 2

Step-by-step explanation:

You might be interested in
Please help urgently.
const2013 [10]

Answer:

No

Step-by-step explanation:

He's only won 50% of the games bc he lost one and one one. 1/2

7 0
3 years ago
A special deck of cards consists of 5 red cards, 20 blue cards, and 25 green cards. Svetlana selects 1 card from the special dec
Ipatiy [6.2K]

Answer:The answer is 50

Step-by-step explanation:

The first step is to add up the numbers in order to get the outcome

5 red + 20 blue +25 green =5+20+25 =50

Step 2

Probability =no of events /no of outcome

We were asked to find the probability of red

Where red represent event

And the summation of red ,green and blue represents outcome .

So probability of red =5/50 = 1/10

Step 3

Recall in the question ,we were told that the card was selected 500 times ,so we multiply the probability of getting red by 500

1/10 *500 =50

Therefore the probability of drawing a red card from the special deck 500 times is 50 .

7 0
4 years ago
Can someone help me with these
Trava [24]
Short answer
For 6: 72 ft^2
For 7: 650 m^2

Six
The base is a square. It's measurement is s = 4
Base = 4^2 
Base = 16 ft^2

One triangle 
A = 1/2 * b * h
A = 1/2 * 4 * 7
A = 14 tt^2

Four triangles
A = 4 * 14
A = 56 ft^2

Total Area = 56 + 16 = 72 ft^2
Answer 72 square feet

Seven
Triangles
Area of 1 triangle = 1/2 * 10 * 13
Area of 1 triangle = 65


Area of 6 triangles
Area of 6 triangles = 6 * area of 1 triangle
Area of 6 triangles = 390

Base
As near as I can tell, the base is a hexagon. It's using a rather out of the way method of drawing it. I will assume it is a regular hexagon. The area of a regular hexagon is 3 sqrt(3)/2 * S^2 where s is the side of the hexagon.

Area = 3sqrt(3)/2 s^2
s = 10
Area = 3sqrt(3)/2 10^2
Area = 5.1962 * 100 /2
Area = 259.81

Total area
Total area = area of the base + area of the triangles
Total area = 259.81 + 390
Total area (rounded ) = 650

Answer C <<<< answer 

I'll do one more in this batch and then you'll need to repost again.

Eight

If you draw two diagonals on the base of the figure, the intersection point will meet the base of the height. Read that a couple of times.
Join the intersection to the midpoint of the length of the square bottom.  You should get 3.5

x is found by using the pythagorean theorem.
h = 6
s = 3.5
x = ????

x^2 = 6^2 + 3.5^2
x^2 = 36 + 12.25
x^2 = 48.25
x = sqrt(48.25)
x = 6.95 

C <<<< answer

 


8 0
3 years ago
Simplify x^2-4x+4/x^2-4
MatroZZZ [7]

Answer:

x2 - 4x - 4

 ———————————

    x - 2  

Step-by-step explanation:

4 0
3 years ago
How can you rewrite P(z £ –1.75) in order to find the answer? P(z £ 1.75) P(z ³ -1.75) 1 - P(z £ -1.75) 1 - P(z £ 1.75)
Fudgin [204]
To rewrite it the answer is 1-P(z 1.75) D

5 0
3 years ago
Read 2 more answers
Other questions:
  • 20 POINTS PLEASE HELP Write an equation for a trend line and predict the value when x is 15
    12·1 answer
  • How does knowing the double 6+6=12 help you solve the near double 6+7=13
    15·1 answer
  • Grant and Pedro are comparing their stocks for the week. On Monday, their results were opposite. Explain how you would graph the
    11·2 answers
  • How do you evaluate 3f(2)
    5·2 answers
  • Aunt Bea has 37 pigs and ducks oh her farm. In all, there are 116 legs. How many pigs and how many ducks does Aunt Bea have on h
    11·1 answer
  • Danielle's text messaging plan costs $14 for the first 500 messages and 10¢ for each additional text message. If she owes $27.70
    12·1 answer
  • Match the graph to its equation.
    5·2 answers
  • Which equation has the solution x = 9?
    15·2 answers
  • A rectangular box has a square base with an edge length of x cm and a height of h cm. The volume of the box is given by V = x2h
    13·1 answer
  • 9(y - 4) + y + - 30 ????????????????
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!