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
il63 [147K]
3 years ago
15

If Sheila drove 152 km at an average speed of 95 km/h, how much time did her trip take?

Mathematics
2 answers:
s2008m [1.1K]3 years ago
8 0
1.6 hrs

152 divided by 95 equals 1.6 hrs

Hope this helps learned in math class and that is the answer

Pls give me BRAINLIEST
sattari [20]3 years ago
6 0

1.6 hours

152 km total divided by her speed, 95 km/h =1.6

You might be interested in
A random sample of size n1= 25, taken from a normal population with a standard deviation σ1= 5, has a mean X1= 80. A second rand
sesenic [268]

Answer:

The 94% confidence interval would be given by 2.898 \leq \mu_1 -\mu_2 \leq 7.102

Step-by-step explanation:

Previous concepts  

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".  

The margin of error is the range of values below and above the sample statistic in a confidence interval.  

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

\bar X_1 =80 represent the sample mean 1

\bar X_2 =75 represent the sample mean 2

n1=25 represent the sample 1 size  

n2=36 represent the sample 2 size  

\sigma_1 =5 sample standard deviation for sample 1

\sigma_2 =3 sample standard deviation for sample 2

\mu_1 -\mu_2 parameter of interest.

The confidence interval for the difference of means is given by the following formula:  

(\bar X_1 -\bar X_2) \pm z_{\alpha/2}\sqrt{\frac{\sigma^2_1}{n_1}+\frac{\sigma^2_2}{n_2}} (1)  

The point of estimate for \mu_1 -\mu_2 is just given by:

\bar X_1 -\bar X_2 =80-75=5

Since the Confidence is 0.94 or 94%, the value of \alpha=0.06 and \alpha/2 =0.03, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.03,0,1)".And we see that z_{\alpha/2}=1.88  

The standard error is given by the following formula:

SE=\sqrt{\frac{\sigma^2_1}{n_1}+\frac{\sigma^2_2}{n_2}}

And replacing we have:

SE=\sqrt{\frac{5^2}{25}+\frac{3^2}{36}}=1.118

Confidence interval

Now we have everything in order to replace into formula (1):  

5-1.88\sqrt{\frac{5^2}{25}+\frac{3^2}{36}}=2.898  

5+1.8\sqrt{\frac{6^2}{36}+\frac{7^}{49}}=7.102  

So on this case the 94% confidence interval would be given by 2.898 \leq \mu_1 -\mu_2 \leq 7.102  

7 0
3 years ago
What does "mean" mean in math terms
Vaselesa [24]
Answer: In math a mean is the simple mathematical average of a set of two or more numbers.

5 0
2 years ago
PLEASE HELP By what percent will a fraction change if its numerator is decreased by 60% and its
belka [17]

This is your Answer...

<em>Hope</em><em> it</em><em> helps</em><em> you</em><em>.</em><em>.</em><em>.</em><em> </em><em>pls</em><em> mark</em><em> brainliest</em>

4 0
3 years ago
BRIANLEST!!!!Lines p and q are parallel.
slava [35]

Correct answer is a) 27 degrees.

8 0
3 years ago
Read 2 more answers
Which answer describes the transformation of f(x)=x^2−1 to g(x)=(x−1)^2−1 ?
Vinil7 [7]
Answer is 

<span>2.) a horizontal translation 1 unit to the right

hope it helps</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • What is the order pair 3x+2y=6
    13·1 answer
  • Students who score within 14 points of the number 88 will pass a particular test. Write this statement using absolute value nota
    11·1 answer
  • Find the total cost of a $43 dinner if you leave 18% gratuity (tip).   
    7·1 answer
  • 297.3 = 2hundred, 9tens, 7 ones, and 3 tenths. Regroup 297.3 using 2 hundred, 9 tens, 5 ones, and ? tenths
    8·1 answer
  • Investigate the range of each parent function below over the interval o ranges from least to greatest.<br> Identity function, re
    9·1 answer
  • Becki put some stamps into her stamp collection book she put 14 stamps on each page if she completely filled 16 pages how many s
    12·1 answer
  • What makes (a + 2)(b – 9) = 0 true?
    14·2 answers
  • What is the inverse of f(x)=2^x
    8·1 answer
  • Y = 6x<br> 1. Solve:<br> 4x + y = 7
    8·2 answers
  • The sphere is _____ cubic centimeters bigger than the cube. (Round to the nearest cubic centimeter.)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!