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
Margarita [4]
2 years ago
6

Ethan ran 11 miles in 2 hours What is the constent of proporttional of miles to a hour

Mathematics
1 answer:
Dafna1 [17]2 years ago
5 0

Answer:

5.5 miles

Step-by-step explanation:

If he ran 11 miles in 2 hours then divide both of them by 2, so 1 hour is equal to 11 / 2 which is 5.5 miles

You might be interested in
HELP! DUE AT 5 PM!! 10 BRAINLIST!<br><br> 3x -15x - 30 &gt; 54
ryzh [129]

Answer:x<-7

Step-by-step explanation:

3x -15x - 30 > 54

-12x-30>54

-12x<54+30    

I moved 30 from left side to right which becomes positive and > becomes <

-12x<84

-12x/-12<84/-12           I used my calculator to do this

x<-7

7 0
3 years ago
Which table represents the statement “A freight train is traveling at an average rate of 45 miles per hour”?
Evgesh-ka [11]

Answer:

the first one

Step-by-step explanation:

the answer is the first one

5 0
3 years ago
If a town with a population of 1,000 doubles in size every 46 years, what will the population be 92 years from now?
Natalija [7]

Answer:

3,000 or 2,000 depends of where it starts at zero or 1,000

Step-by-step explanation:

3 0
3 years ago
Kenny is packing cans into bags at the food bank he cn pack 8 cans into each bag how many bags how many bags will kenny need for
Sholpan [36]
1056cans/ 8 cans=132 bags
3 0
3 years ago
A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat
Marizza181 [45]

Answer:

n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25  

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by \alpha=1-0.90=0.1 and \alpha/2 =0.05. And the critical value would be given by:

z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.04 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

We assume that a prior estimation for p would be \hat p =0.5 since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25  

And rounded up we have that n=421

5 0
3 years ago
Other questions:
  • HELP YOU ONLY HAVE TO ANSWER 1 BUT YOU CAN DO ALL IF YOU WANT
    7·2 answers
  • What is the value of y?
    11·2 answers
  • Given the polynomial 6x3 + 4x2 - 6x - 4, what is the value of the coefficient 'k' in the factored form?
    11·2 answers
  • -2/3x= -12 solve for x
    13·1 answer
  • Does anybody know the answer?
    8·2 answers
  • Sipho buys a bread on Monday and eats a third of it. On Tuesday he eats half of what is left over. If the bread is cut in 21 sli
    6·1 answer
  • Is y=3x+6 a function?
    6·1 answer
  • What is the value of x and what does ACB equal to? Please answer as soon as possible! Thanks for your support!
    7·2 answers
  • Can someone please help me with these questions ?!!!
    7·1 answer
  • GUYS, I NEED YOUR HELP!! Write an equation for each word problem.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!