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
mafiozo [28]
3 years ago
8

13. A bag contains 8 red marbles, 4 purple marbles, 5 green marbles, 2 orange, and 1 blue

Mathematics
1 answer:
nexus9112 [7]3 years ago
6 0

Answer:

a) 9 / 200

b) 13 / 100

Step-by-step explanation:

a) The two events are independent because they do not depend each other since the marbles are replaced. To find the total probability of two independent events, you multiply the probability of each event together.

Probability is represented by the amount of desirable outcomes over the total number of outcomes. The total would be the number of marbles, which is: 8 + 4 + 5 + 2 + 1 = 20 outcomes. The number of orange marbles is 2, so the outcomes where you do not pick orange are 20 - 2 or 18 outcomes. The probability of not picking an orange marble would be 18 / 20 or 9 / 10 (using the formula for probability).

There is one outcome where we can pick a blue marble, so the probability of picking a blue marble is 1 / 20. Now, we need to multiply the probabilities for each event: 1 / 20 * 9 / 10  = 9 / 200

b)There are 5 green marbles and 8 red marbles, so the the total outcomes where you pick green or red is 13. We put that over our total to get 13 / 20.

There are 4 purple marbles, so the probability of picking purple is 4 / 20 or 1 / 5. Now we multiply the two probabilities to get the total probability: 1 / 5 * 13 / 20 = 13 / 100

You might be interested in
Explain the effect of c on the graph of y=f(x) for the function y=f(x)+c ?
omeli [17]

Answer:

Shifts it up c units.

Step-by-step explanation:

The '+ c'  will move the whole graph upwards c units.

4 0
3 years ago
Read 2 more answers
Jack had three times as many magic beans as his mother. after he gave her 23 beans, he still has 20 more than she had. how many
posledela

There are 43 magic beans althogether

4 0
3 years ago
Harley is loading 625 bags of cement in pallets . Each pallet holds 5 bags. How many pallets well she need?
notka56 [123]
625/5=125
125 is your answer
4 0
3 years ago
Read 2 more answers
Suppose a jar contains 15 red marbles and 19 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same
Kay [80]

Answer:    \bold{\dfrac{35}{187}}

<u>Step-by-step explanation:</u>

1st marble  and   2nd marble

 \dfrac{15\ red}{34\ total}       \times        \dfrac{14\ red}{33\ total}           =\dfrac{15\times 14}{34\times 33}=\dfrac{5\times 7}{17\times 11}= \boxed{\dfrac{35}{187}}

8 0
3 years ago
Multiply: Using FOIL method<br> (x-8)^3
alukav5142 [94]
(x - 8)³
(x - 8)(x - 8)(x - 8)
(x² - 8x - 8x + 64)(x - 8)
(x² - 16x + 64)(x - 8)
(x³ - 8x² - 16x² + 128x + 64x - 512)
x³ - 24x² + 192x - 512
6 0
3 years ago
Other questions:
  • Please help me with this problem! <br> y =<br><br> 37<br> 39<br> 51
    8·2 answers
  • 7/12 + 3/4 in simplest form?
    9·2 answers
  • Is 9(y-2) equivalent to 18- 9y
    10·1 answer
  • Candice has six pairs of jeans she places each pair on its own hanger how many hangers does Candace use
    9·2 answers
  • What is the Value of 5a + 15/B WHEN A =-2 AND b=3
    10·2 answers
  • Which equation best represents the line?
    15·2 answers
  • Convert 1100111 into decimal numbers ​
    14·1 answer
  • Module 3 DBA: What key features can be identified from graphs of polynomials of higher-
    15·1 answer
  • PLEASE HELP
    13·1 answer
  • Mark must at least 32 units of vitamin a 10 units of vitamin b and 55 units of vitamin c daily he can choose between pill #1 whi
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!