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
Leni [432]
3 years ago
12

Can someone please solve this problem for me. I'm kind of confused-This is probability too-​

Mathematics
1 answer:
Andrej [43]3 years ago
5 0

Step-by-step explanation:

<h3>(1)</h3>

The probability of landing on the color gray ONCE

= 2/7

Since it is spun 35 times, the expected number of times that it lands on a gray will be

(2/7 × 35) = 10 times

<h3>(2)</h3>

The probability of landing on the color black ONCE

= 1/7

Since it is spun 105 times, the expected number of times that it lands on a black will be

(⅐ × 105) = 15 times

The formula is:

Expected value = (Number of spinning)×(probability of landing on a colour)

You might be interested in
A+3 1/4+5 2/9 what is the value of a, explain how you got the answer
larisa86 [58]

Answer:

a+305/36

Step-by-step explanation:

Convert

3

1

4

3

1

4

to an improper fraction.

a

+

13

4

+

5

2

9

a

+

13

4

+

5

2

9

Convert

5

2

9

5

2

9

to an improper fraction.

a

+

13

4

+

47

9

a

+

13

4

+

47

9

To write

13

4

13

4

as a fraction with a common denominator, multiply by

9

9

9

9

.

a

+

13

4

⋅

9

9

+

47

9

a

+

13

4

⋅

9

9

+

47

9

To write

47

9

47

9

as a fraction with a common denominator, multiply by

4

4

4

4

.

a

+

13

4

⋅

9

9

+

47

9

⋅

4

4

a

+

13

4

⋅

9

9

+

47

9

⋅

4

4

Write each expression with a common denominator of

36

36

, by multiplying each by an appropriate factor of

1

1

.

a

+

13

⋅

9

36

+

47

⋅

4

36

a

+

13

⋅

9

36

+

47

⋅

4

36

Combine the numerators over the common denominator.

a

+

13

⋅

9

+

47

⋅

4

36

a

+

13

⋅

9

+

47

⋅

4

36

Simplify the numerator.

a

+

305

36

a

+

305

36

3 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP
Lorico [155]

Answer:

52 degreesssssssssssssssssss

Step-by-step explanation:

its OVER 9,0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

5 0
3 years ago
The nature park has a pride of 7 adult lions and 4 cubs. The adults eat 6 pounds of meat each day and the cubs eat 3 pounds. Eva
ohaa [14]
54 remember to use pemdas
7 0
3 years ago
Read 2 more answers
John has a map that shows a rectangular park 1 1/4 cm : 8 yd. on the map, the width of the park is 2 1/2 cm. What is the parks a
Ber [7]

Answer:

16 yd.  This is the park's actual length.

Step-by-step explanation:

Write and solve an equation of ratios:

1 1/4 cm     8 yd

------------ = -----------

2 1/2 cm        x

Note that 2(1 1/4 cm) = 2 1/2 cm, so the above equation becomes:

 1       8 yd

----- = ---------

  2         x

Solving for x, we get x = 16 yd.  This is the park's actual length.

3 0
3 years ago
Which is the best estimate for 49% of 598 <br> A. 3 <br> B.30<br> C.300<br> D.3,000
DIA [1.3K]

Answer:

300

Step-by-step explanation:

3 would be extremely low

30 would be low

300 would be about right

3,000 lets not talk about this

Hope this helps

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which scale factors produce a contraction under a dilation of the original image?
    9·1 answer
  • Anyone that can help me with this?
    9·2 answers
  • What is an equation of the line in slope-intercept form? m = two-sevenths and the y-intercept is (0, –12)
    10·1 answer
  • PLEASE HELP ASAP!!!!!<br><br>The graph below shows the solution set to which inequality?
    15·1 answer
  • There is an average of 3.5×10−2 kilograms of dissolved salt in each liter of seawater. The South China Sea contains approximatel
    10·1 answer
  • Two 6-sided dice are tossed simultaneously. what is the probability of the total being equal to 9?
    8·1 answer
  • Please Help, 20 Points !!
    13·1 answer
  • 16x²-102X=-36<br> How to write this in Vertex form
    12·1 answer
  • Write each rational number as a repeating decimal -7/9
    7·1 answer
  • Hi im gonna use all my points on this
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!