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
irga5000 [103]
3 years ago
14

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. Kevin spins th

e spinner 180 times. Kevin determines about how many times the spinner will land on red or green, and his work is shown below.
What mistake did Kevin make, if any?
Kevin has the formula reversed; it should be the total number of sections over the number of red or green sections.
Kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections.
Kevin should multiply by the number of sections in the spinner rather than the total number of spins.
Kevin calculated the prediction correctly and did not make any mistakes.

Mathematics
2 answers:
IrinaK [193]3 years ago
6 0

Answer:  2nd answer

Step-by-step explanation:

Kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections.

g100num [7]3 years ago
3 0
<h2>Answer:</h2>

The mistake that kevin make is:

  •       Kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections.
<h2>Step-by-step explanation:</h2>

It was given that there are 10 sections in the spinners 2 of each color.

Hence, in order to find the probability that the spinner lands on green or red is:

He need to find the total sections which are red or green,.

There are 4 sections which are red or green

( Since 2 are green and 2 are red)

and the probability that it will land on green or red is:

        =\dfrac{4}{10}\times 180\\\\\\=72

Hence, she should have taken 4 in the numerator to calculate the probability.

You might be interested in
What is the area of the parallelogram (a) 168s sq inches b) 140 sq inches c) 130 sq inches d) 120 sq inches
irina [24]

Answer:

Step-by-step explanation:

Area of a parallelogram is given as the multiplication of its length by that of its height or breadth, however you call it.

In this question, you didn't state the length nor the breadth or height. You just listed the answers. It's very hard knowing the answer without having its dimensions. However, I can tell you that on the diagram or drawing you have there with you, multiply the two distance given to you together, it ought to give you one of the four options you listed above. Be it 168, 140, 130 or even 120 square inches.

4 0
3 years ago
How do you do this ?
Maru [420]
Well the first part is 27 but the second part is adding 60 to 21 which is 81. dont forget that!
4 0
4 years ago
Read 2 more answers
Find cube of<br><br><br> (387.758)3<br>​
Mashcka [7]

Answer:

(387.758) cubed is 58301845.2103

387.758 cube rooted is 7.29211634

Step-by-step explanation:

8 0
3 years ago
Please help me....Use the Pythagorean identity
RideAnS [48]

Using the Pythagorean identity, the value of the cosine ratio is \cos(\theta_1) =  \frac{84}{85}

<h3>How to determine the cosine ratio?</h3>

The given parameter is:

\sin(\theta_1) = -\frac{13}{85}

By the Pythagorean identity, we have:

\sin^2(\theta_1) + \cos^2(\theta_1) = 1

So, we have:

(-\frac{13}{85})^2 + \cos^2(\theta_1) = 1

This gives

\cos^2(\theta_1) = 1 - (-\frac{13}{85})^2

Evaluate

\cos^2(\theta_1) = 1 - \frac{169}{7225}

Take LCM

\cos^2(\theta_1) = \frac{7225 -169}{7225}

This gives

\cos^2(\theta_1) = \frac{7056}{7225}

Take the square root of both sides

\cos(\theta_1) = \pm \frac{84}{85}

Cosine is positive in the fourth quadrant.

So, we have:

\cos(\theta_1) =  \frac{84}{85}

Hence, the cosine value is \cos(\theta_1) =  \frac{84}{85}

Read more about Pythagorean identity at:

brainly.com/question/1969941

#SPJ1

4 0
3 years ago
Which expression is equivalent to 27 + 45? (1 point)
s2008m [1.1K]

Answer:

C because 9*3 is 27, and 9 times 5 is 45 :D

have a great day! :'D

4 0
3 years ago
Read 2 more answers
Other questions:
  • Using the given information, complete the following problem. Given: △ABC ≅ △RST If AB = 6, ST = 8, AC = 12, ∠A = 40°, ∠T = 20°,
    7·2 answers
  • What are all natural number factors of 130
    8·1 answer
  • The point-slope form of the equation of a line that passes through points (8, 4) and (0, 2) is y – 4 = 1/4(x – 8). What is the s
    15·2 answers
  • If m(x) = x^2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)?
    7·1 answer
  • Write the inequality that represents the​ sentence, ​"Four less than a number is greater than 58​."​
    11·2 answers
  • 3x-15 complementary angles find the sum of x
    11·1 answer
  • Pls tell me how to convert a fraction into a decimal! I’m having sm trouble understanding:(
    15·1 answer
  • Janelle is in charge of bringing in dry erase markers for everyone in her math group to use to work on a project. She brings 3 m
    13·2 answers
  • X - 3y = 17<br> x = 2y + 13<br> What are the steps for solving these?
    9·1 answer
  • Will mark brainlest help
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!