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ella [17]
2 years ago
15

Jackson mom limits the amout of time he is allowed to play video games . After jackson play for 9 .Inutes , his mom tells him th

at he has used up 30% of his time . How many more minutes can jackson play before he uses all of his time
Mathematics
1 answer:
vaieri [72.5K]2 years ago
5 0
If we know that 30% of the time is used after 9 minutes we can write this mathematically as:

0.30x = 9
By solving for x we can determine the total time allowed to play games and so:

x =  \frac{9}{0.30}  = 30
The total time allowed to play games is 30 minutes. Since 9 minutes have lapsed 30-9=21 minutes left to play.
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Find the sample space for a committee of two chosen from Alice (A), Bill (B), Carol (C), and David (D).
Finger [1]

Answer:

(a) C.  {(A, B), (A, C), (A, D), (B, C), (B, D), (C, D)}

(b) C. {(A,B),(A,D),(B,C),(C,D)}

Step-by-step explanation:

Given four members eligible for selection:

Alice (A), Bill (B), Carol (C), and David (D).

The possible combinations are:

(A,B),(A,C),(A,D),(B,A),(B,C),(B,D),(C,A),(C,B),(C,D), (D,A),(D,B), (D,C)

<u>Part A</u>

Since the same pairs are equal i.e. (A, B)=(B , A),

The Sample space for a committee of two is:

{(A,B),(A,C),(A,D),(B,C),(B,D),(C,D)}

This is Option C.

<u>Part B</u>

If both genders must be represented, we remove the entries that contain the same gender from the sample space above.

A and C -Female

B and D - Male

{(A,B),(A,C),(A,D),(B,C),(B,D),(C,D)}

Therefore, the sample space if both genders are to be represented is:

{(A,B),(A,D),(B,C),(C,D)}

This is Option C.

4 0
3 years ago
How do I evaluate <br> F(-1/4)=4x-18
Andre45 [30]

Answer:

F(-1/4)=4x-18

F(-1/4) = 4 (-1/4) - 18

F(-1/4) = -19

Step-by-step explanation:

You would have to replace the given numbers and just do the math

5 0
3 years ago
Ill give you 28 points if you answer this!!
elena-14-01-66 [18.8K]

Answer:

D

Step-by-step explanation:

because youe last number is 90

6 0
3 years ago
Triangle A B C is shown. Angle A C B is a right angle. An altitude is drawn from point C to a point on side A B to form a right
mars1129 [50]

Answer:

BC=15\ units

Step-by-step explanation:

see the attached figure to better understand the problem

In the right triangle ABC

Applying the Pythagorean Theorem

AB^2=AC^2+BC^2

substitute the given values

17^2=8^2+BC^2

solve for BC

BC^2=17^2-8^2

BC^2=225

BC=15\ units

5 0
2 years ago
Read 2 more answers
1. In which number does the 6 have a value that is one-tenth the value of the 6 in 34,7612
DiKsa [7]
I think it's C, I could be wrong though
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3 years ago
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