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
madreJ [45]
3 years ago
6

A bag has 1 red marble, 4 blue marbles, and 3 green marbles. Peter draws a marble randomly from the bag, replaces it, and then d

raws another marble randomly. What is the probability of drawing 2 blue marbles in a row? Explain your answer.
Mathematics
2 answers:
Rus_ich [418]3 years ago
8 0
To find the probability we will have to use the formula P= Desired Amount/ Total outcomes. Let's do the steps to solve this problem.

1. Substitute the known values..... The desired outcome is 4 since there are 4 blue marbles.

So our formula is now: 4/8>>>>> 8 is the total amount of marbles. 4/8 is equal to 1/2

2. This is a compound event since you are repeating a trial more than once. The compound formula states to multiply by the probability of the next event.

Peter did the experiment 2 times so you multiply 1/2 by 1/2.

3. 1/2 times 1/2=1/4. So the probability is 1/4 for Peter rolling a blue marble twice in a row.

Lynna [10]3 years ago
7 0
The total number of marbles in the bag is 1 + 4 + 3 = 8

The probability of drawing one marble and getting blue is 4/8 = 1/2

Since marble is put back and he draws again, the probability will again be 1/2

The total probability = 1/2 * 1/2 = 1/4. 

1/4 <<<<Answer
You might be interested in
Which student solved their equation incorrectly? (ANSWER QUICK)
Luden [163]
Jess messed up on the equation
4 0
2 years ago
The diameter of the larger circle is 10.5 cm. The diameter of the smaller circle is 4.5 cm.
blondinia [14]
4.5 / 2 = 2.25cm radius for the smaller circle

3.14 (pi) × 2.25² = 15.89625cm²

10.5 / 2 = 5.25cm radius for the larger circle

3.14 × 5.25² = 86.54625cm²

86.54625 - 15.89625 = <span>70.65cm</span>² 

The answer is 70.7cm².
3 0
3 years ago
Read 2 more answers
Latoya drives 8 miles to work in 13 minutes. What is her average rate, in miles per hour, when rounded to the nearest wholes num
Mama L [17]

Answer:

37 miles per hour

Step-by-step explanation:

To find the average rate (average speed) of Latoya in miles per hour, you would divide the distance traveled (in miles) by the time taken to travel (in hours).

So we know that Latoya traveled 8 miles in 13 minutes. We cannot divide 8 by 13, because 13 is in minutes, not hours. We must convert 13 minutes to hours before dividing.

There are 60 minutes in one hour, so to covert minutes into hours, we would divide the minutes (13) by 60. Doing this would give you 13/60. You cannot simplify the fraction 13/60, because 13 is a prime number. It would be best to just leave it as it is for now. So Latoya traveled for 13/60 hours.

Now, to find her average rate in miles per hour, you divide the distance traveled in miles (8 miles) by the time it took to travel in hours (13/60):

8 ÷ 13/60

Remember, a ÷ b/c = a × c/b. Using this:

8 ÷ 13/60 = 8 × 60/13 = 480/13 ≈ 37 rounded to the nearest whole number.

Latoya had an average rate of about 37 miles per hour.

I hope this helps. :)

6 0
3 years ago
This is the last question i got a 100 so far can we get a full 100
yKpoI14uk [10]

Answer:

b

Step-by-step explanation:

8 0
3 years ago
Which of the following is not true?
Natasha2012 [34]

Answer:

d) 1/2 ÷ 4 = 1/2 • 4/1

Step-by-step explanation:

when dividing fractions use keep change flip (keep the first fraction, change the sign to multiplication, flip the second fraction)

when multiplying just multiply straight across

6 0
3 years ago
Other questions:
  • Hi, can someone please help with these two problems? thank you so much! i'll give brainliest :)
    9·1 answer
  • What is the percent increase from 25 to 95
    12·2 answers
  • Kasia plants her watermelons in rows. Her watermelon field has a perimeter of 71 1/3 yards and is 44 feet wide. The rows will be
    8·2 answers
  • The line plots show the number of hours two groups of teens spent online last week. How does the data compare for the two groups
    9·2 answers
  • Hend bought a vacuum cleaner for LE 250 and sold it for LE 200, then
    11·2 answers
  • Laura is bowling 5 games. Her first 4 scores were 103, 143, 101, and 110.
    10·1 answer
  • What is the radius and diameter of the following circle?
    15·1 answer
  • a D.J. at a school dance plans to play dance music for 2 hours. she has 20 requests for songs. Each song plays for 3 1/2 minutes
    12·1 answer
  • I really need help can you help me plsssss
    9·1 answer
  • What is the theoretical probability that you will get a sum of 7? P(sum of 7)=
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!