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
Sonja [21]
3 years ago
9

Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. It takes Amy 40 minutes t

o arrive at school. Bill arrives 20 minutes after Amy. How much faster (in meters/second) is Amy's average speed for the entire trip?
Mathematics
1 answer:
ruslelena [56]3 years ago
8 0
Bill and Amy travel the same distance from home to school of 14.4 kilometers. Amy takes 40 minutes of time to arrive to school which means she has a rate of 14.4 km /40 minutes or 6 meters/ second. Bill takes a total 60 minutes to arrive to school. Hence Bill's rate is equal to 14.4 km/60 minutes or 4 meters/ second.Amy's is 2 m/s faster than Bill's speed, then. 
You might be interested in
In a survey, 15 high school students said they could drive and 15 said they could not. Out of 60 college students surveyed, 30 s
luda_lava [24]
Micas conclusion is incorrect. There were 30 high school students surveyed and 15 of them said that they could drive, and out of the 60 college students half of them also said they could drive. In both situations, half of the groups were able to drive which shows that his conclusion of knowing that a person is in college means they are more likely to drive is incorrect.

3 0
3 years ago
Read 2 more answers
27 is 10% of what number?
lions [1.4K]
27 multiplied by 10 will give you the answer. 27 x 10 = 270.
4 0
3 years ago
Read 2 more answers
Which one is true? When you use a credit card, the money comes directly out of your account. II. Credit cards typically offer mo
r-ruslan [8.4K]
Choice 3 or III is true 
7 0
4 years ago
The radius of the large sphere is double the radius of the
valentinak56 [21]

Answer:

8

Step-by-step explanation:

just do the comparation

Vb : Vs

b for big and s for small

4/3 π rb³ : 4/3 π rs³ (since there are 4/3 and π on both side, we can eliminate them so)

Vb : Vs = rb³ : rs³

Vb : Vs = (2rs)³ : rs³

Vb : Vs = 8rs³ : rs³ (delete the r³ on both side)

Vb : Vs = 8 : 1

so Vb is 8 times larger in volume than the small one

3 0
3 years ago
A skilled chess player believes that when they play a novice opponent, there is a 90% probability they will be able to beat them
zavuch27 [327]

Answer:

b) Binomial

c) Poisson

Step-by-step explanation:

The geometric distribution is the number of trials required to have r successes. The measures the number of sucesses(wins), not the number of trials required to win r games. So the geometric distribution does not apply.

For each match, there are only two possible outcomes, either the skilled player wins, or he does not. The probability of the skilled player winning a game is independent of other games. So the binomial distribution applies.

We can also find the expected number of wins of the skilled player, which is 15*0.9 = 13.5. The Poisson distribution is a discrete distribution in which the only parameter is the expected number of sucesses. So the Poisson distribution applies.

So the correct answer is:

b) Binomial

c) Poisson

7 0
4 years ago
Read 2 more answers
Other questions:
  • Jessie bought a shirt for $18.00 that was originally $25.00.
    9·2 answers
  • Find the area of the part of the plane z = ax + by + c that projects onto a region in the xy-plane with area
    10·1 answer
  • Which expression is equivalent to x + x + x + 5 + 5, no matter what value is substituted in for xWhich expression is equivalent
    7·2 answers
  • A pot of boiling water at 212 degrees Fahrenheit on the stove has less thermal energy than a hot tub full of water at 100..4 deg
    8·1 answer
  • Arrange in creasing order 14.20 414.200 14.240 14.210
    9·2 answers
  • 16n2 – 10n – 5 = 6n<br> Solve the equation for all real solutions
    15·1 answer
  • Solve the following equation. Then place the correct number in the box provided. 4x/3=8
    9·1 answer
  • Which algebraic expression represents the verbal expression “7 decreased by m”?
    8·2 answers
  • Complete the following statement. Write your answer as a decimal or whole number.<br> % of $68 = $34
    13·1 answer
  • ( 1 ) 0.006 m (cm) =<br> ( 2 ) 17, 605 mm (km) = <br> ( 3 ) 1,001,00 dm (km) =
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!