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
tamaranim1 [39]
4 years ago
8

A train is travelling 40 miles per hour. Convert the trains speed to miles per minute

Mathematics
1 answer:
disa [49]4 years ago
7 0

Answer:

0.666... miles per minute

Step-by-step explanation:

I set up a ratio for the speed made a equivalent fraction for miles per minute.

(Keep in mind that an hour is 60 minutes.)

\frac{miles}{minutes}=\frac{40}{60}=\frac{40/60}{60/60}=\frac{0.666...}{1}

Hope this helps.

You might be interested in
HELP ME!! PLEASE ASAP
saul85 [17]

Answer:I am giving out 60 points if answer my question s

Step-by-step explanation:

Plz help

3 0
4 years ago
Read 2 more answers
et x be a random variable representing movement (in feet per year) of such sand dunes (measured from the crest of the dune). Let
pickupchik [31]

Given the following which is the mean and standard deviation of the dune’s movement over one year and need to find out what the ten year mean and the standard deviation will be.

The ten-year mean is ten times the one year mean or 110 feet per decade. The ten-year standard deviation is somewhat more complicated. Multiple independent trials accumulate standard deviation as the square root of the number of trials since an unusually high level of movement ten years in a row. The decade is going to be 2 feet per year x square root of ten will result to 6.32 feet.

The answer will to question A. will be:

 

<span>  90           < 110 + z (6.32 feet)</span>

<span> -20           < z (6.32 feet)</span>

<span>    z            > - 3.16</span>

<span>By using the z table, it shows the probability of 0.9992. This result shows that as 90 feet is lesser than the mean travel that is expected over decade. </span>

7 0
3 years ago
The base of a triangle is 3 feet shorter than twice its height. if the area is 27 ft, find the dimensions of the triangle
Alona [7]
The area is going to be 9
8 0
4 years ago
A recent kellogg survey shows that approximately 34% of americans eat breakfast. suppose alex takes a random sample of four amer
vlabodo [156]

This kind of experiments are ruled by Bernoulli's formula. If you have probability p of "success", and you want k successes in n trials, the probability is


\binom{n}{k}p^k(1-p)^{n-k}


It's easier to compute the first probability by difference: instead of computing the probability of the event "at least one of the surveyed eats breakfast", let's compute the probability of its contrary: none of them eats breakfast. So, we want 0 successes in 4 trials, with probability of success 0.34. The formula yields


\binom{4}{0} 0.34^0 0.64^4 = 0.64^4 \approx 0.17 = 17\%


Since the contrary has probability 17%, our event "at least one of the surveyed eats breakfast" has probability 83%.


As for the second question, the event "at least three of the surveyed eats breakfast" is the union of the events "exactly three of the surveyed eats breakfast" and "exactly four of the surveyed eats breakfast". So, we just need to sum their probabilities:


\binom{4}{3} 0.34^3 0.64^1 +\binom{4}{4} 0.34^4 0.64^0 = 4\cdot  0.34^3 0.64 + 0.34^4 \approx 0.11 = 11\%

3 0
3 years ago
To make orange fizz, Noah mixes 4 scoops of powder with 6 cups of water. Andre mixes 5 scoops of powder with 8 cups of water.
Mariulka [41]

Answer:

Noah's recipe because he uses less water per scoop of powder than Andre does.

6 0
3 years ago
Read 2 more answers
Other questions:
  • 10 pts
    13·1 answer
  • Help plzzzzzzzzzzzzzzzzzzzzz
    12·1 answer
  • Please help with 1 and 2❤️plz plz
    12·2 answers
  • Which graph represents the function f(x) = –x^2 + 5?
    13·1 answer
  • What point is halfway between (3,-1) and (8,-6)?
    9·2 answers
  • What is the distance between point A(2,9) and B(-2,6)
    7·1 answer
  • B(1)=−7 <br> b(n)=b(n−1)+12 ​<br><br> Find the 4th term in the sequence.
    11·1 answer
  • Which is not a correct name for the line showing?
    12·1 answer
  • A large operator of timeshare complexes requires anyone interested in making a purchase to first visit the site of interest. His
    12·1 answer
  • Marissa recently started working part time for a store that pays her $10. 80 per hour. She is expected to work a total of 19 hou
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!