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
Nataliya [291]
4 years ago
15

There are 6 pennies, 9 nickels, and 3 dimes in a box. Find the probability of...

Mathematics
2 answers:
valina [46]4 years ago
5 0

Answer:

a) 4/17

b) 1/12

c) 3/34

d) 3/34

Step-by-step explanation:

a) The probability of choosing the first nickel is 9/(9 + 6 + 3) (because there are 9 nickels to choose from and a total of 9 + 6 + 3 = 18 coins to choose from) = 9/18 = 1/2. The probability of choosing the second nickel is 8/17 (because there's no replacement, we have 9 - 1 = 8 nickels remaining to choose from and 18 - 1 = 17 total coins). Multiply these together: (1/2) * (8/17) = 8/34 = 4/17

b) The probability of choosing a nickel is 9/18 (just like above) = 1/2. The probability of choosing a dime is 3/18 (because there are 3 dimes and since there IS replacement, we still have 18 total coins to choose from). Multiplying these, we get: (1/2) * (3/18) = 3/36 = 1/12

c) The probability of choosing a nickel is 9/18 = 1/2. The probability of choosing a dime after that is 3/17 (because there are 3 dimes to choose from, but since there's NO replacement, there are only 18 - 1 = 17 total coins). Multiplying these, we get: (1/2) * (3/17) = 3/34

d) The probability of choosing a penny is 6/18 (because there are 6 pennies) = 1/3. The probability of choosing a nickel next is 9/17 (because there is NO replacement, there are 18 - 1 = 17 total coins remaining). The probability of choosing a second nickel is 8/16 = 1/2 (because there are 17 - 1 = 16 total coins and 9 - 1 = 8 nickels left). Multiplying these, we get: (1/3) * (9/17) * (1/2) = 9/102 = 3/34

Hope this helps!

hoa [83]4 years ago
3 0

Answer:

a) 4/17

b) 1/12

c) 3/34

d) 3/34

Step-by-step explanation:

Total: 6 + 9 + 3 = 18

a) 9/18 × 8/17

4/18

b) 9/18 × 3/18

1/12

c) 9/18 × 3/17

3/34

d) 6/18 × 9/17 × 8/16

3/34

You might be interested in
!!GIVING AWAY ALLL MY POINTS FOR THIS!!
puteri [66]

Answer:

1) Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents.

2) Looking more like one parent or the other is dependent on the gene versions each parent has. And which ones happen to get passed down. We have two copies of each of our chromosomes and so have two copies of each of our genes.

3) Nurture refers to all the environmental variables that impact who we are, including our early childhood experiences, how we were raised, our social relationships, and our surrounding culture. Nurture assumes that correlations between environmental factors and psychological outcomes are caused environmentally. For example, how much parents read with their children and how well children learn to read appear to be related. Other examples include environmental stress and its effect on depression.

4) Sea turtles use two cues to find the ocean after they hatch. One is light. The surface of the ocean reflects light. The hatchlings look for the twinkling of the sun or moon light bouncing off the ocean.

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If a person walks<br> mile in 10 minutes, how far will that person<br> walk in one hour?
IceJOKER [234]

Answer:

6 miles

Step-by-step explanation:

miles : minutes

1 : 10

x : 60

60/10=6

x must equal 6

6 0
3 years ago
Read 2 more answers
jenny won the ping pong championship eight more times than gerardo. they have won a combined total of 32 championship
Lena [83]
X + x +8 = 32
2x + 8 = 32
2x = 24
x = 12
So gerardo has won 12 and jenny has won 20
3 0
3 years ago
Please help! I’ll also give brainliest! Thank you!
irina [24]

Answer:

The solution is in the attached file below

7 0
3 years ago
Read 2 more answers
What is the measure of the sides of a square with an area of 49 inches
Lunna [17]

Answer:

7 inches

Step-by-step explanation:

area of square=l^2

49=l^2

\sqrt{49=l

7=l

therefore the sides of a triangle is 7 inches.

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of this quadratic function.<br> 4x^2+88x
    12·1 answer
  • Mr. Smith earns 6% commission on every house he sells. If he earns $9,000, what was the price of the house?
    6·1 answer
  • Tommy is making a candle. He can choose 1 of 3 wax types, 1 of 6 molds, and 1 of 9 scents. How many ways can Tommy make a candle
    9·1 answer
  • Which of the following is a function equivalent to f(x) = 3(1.7)4x? (5 points) f(x) = 25.06x f(x) = 3(8.35)x f(x) = 3(8.25x) f(x
    9·2 answers
  • A pair of pants costs $80. If the sales tax is 8.25% how much is the sales tax? *
    15·1 answer
  • Vhich inequality represents the gjven situation. There are at least 12 people at the birthday party.What’s the function?
    9·1 answer
  • Find the missing length the triangles are similar
    14·1 answer
  • .3 Give, in simplest form, the ratio of polenta: mixed frozen berries.​
    7·1 answer
  • Brittany has 18 trading cards. Anthony has t more trading cards than Brittany. Write an expression that shows how many trading c
    7·1 answer
  • Help please. Thank you
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!