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charle [14.2K]
3 years ago
9

Find the probability.

Mathematics
2 answers:
Georgia [21]3 years ago
7 0

Answer: 82%

Step-by-step explanation:

The probability of getting a not clear marble out of the bag is given by the following expression

P=\frac{not clear marbles}{all the possibilities}

The number of not clear marbles in this case, will be the sum of black and white one (15+12=27), and all the possibilities will be the sum of the black, white and clear ones (15+17+6=33). Therefore the probability will be

P=\frac{not clear marbles}{all the possibilities}=\frac{27}{33}=0.8181

In percentage and rounding to the closest number the probability will be 82%

vitfil [10]3 years ago
4 0

Answer:

82%

Step-by-step explanation:

how i did it was 12 + 15 + 6 is 33 and then 12 + 15 is 27 so it's 27 out of 33. then to find the percentage just divide 27 by 33 and multiply the answer by 100.

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A company makes pens. They sell each pen for $99.
Sindrei [870]

Answer:

a) Profit = 84000

b) at break even number of pens sold = 46

Step-by-step explanation:

Profit = Selling price - Cost price

Total revenue generated = 99 * 1000

Total revenue generated = 99000

Total cost on making the pen  = 11 * 1000

Total cost on making the pen = 11000

Total cost including the initial cost = 11000 + 4000

Total cost including the initial cost =  15000

Profit = 99000 - 15000

Profit = 84000

Break even is when the cost are equal to Revenue thus no profit or loss

Revenue = total cost (break even)

9x = 1x + 4000

9x - x = 4000

8x = 4000

x = 500

At breakeven Revenue = 9 * 500

At breakeven Revenue =  4500

since one pen is sold at 99 therefore at break even number of pens sold = 4500/99 = 45.45( to 2 decimal place)

at break even number of pens sold = 46

4 0
3 years ago
Calculate the new area using a scale factor of 3.
Ludmilka [50]

Answer:

315

Step-by-step explanation:

Using a scale factor of 3 basically means just multiply the length and the width by 3.

So instead of 5 * 7, we are doing 15 * 21.

15 * 21 = 315

8 0
3 years ago
A sports broadcaster predicts a basketball team will score 88 point me in the next game. If the team actually scored 98 points w
gavmur [86]

Answer:

The percentage error in the prediction = 10.20%

Step-by-step explanation:

A sports broadcaster predicts a basketball team will score 88 point me in the next game.

If the team has actually scored 98 points we have to find the percentage error in the broadcaster's prediction.

The deviation of the prediction from the actual value = 98 - 88 = 10.

The formula for finding error percentage = \frac{deviation from actual value}{prediction}

                                       = \frac{10}{98} \times 100

                                       = 10.20 %

The percentage error = 10.20%

5 0
3 years ago
Help help math math
iragen [17]

Answer:

864ft^3

Step-by-step explanation:

Divide the diameter by 2 to get the radius

12 / 2 = 6

Then solve the volume equation using 3 for pi.

4/3 * 3 * 6^3

4 * 6^3

4 * 216 = 864

6 0
2 years ago
Read 2 more answers
What is 2-78 please help me
Angelina_Jolie [31]

Answer:

  • 2-78

=-76

hope it is helpful to you ☺️

8 0
3 years ago
Read 2 more answers
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