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
Sever21 [200]
2 years ago
9

Each member of a 5-member cross-country team runs a course. Their individual times are as follows:

Mathematics
1 answer:
Anastasy [175]2 years ago
7 0

Step-by-step explanation:

the average is the sum of all data points divided by the number of data points (5).

2 hours 17 minutes

2 hours 48 minutes

1 hour 53 minutes

2 hours 19 minutes

1 hour 38 minutes

------------------------------

8 hours 175 minutes

175 minutes = 2 hours 55 minutes

so, we need to add this to the 8 hours and get

10 hours 55 minutes

this we need to divide by 5 for the average time

(10 hours 55 minutes) / 5 = 2 hours 11 minutes =

= 2×60 + 11 = 120 + 11 = 131 minutes.

so, their score is 131.

You might be interested in
For males in a certain town, the systolic blood pressure is normally distributed with a mean of 120 and a standard deviation of
KengaRu [80]

Answer:

G=93\ to\ 147

Step-by-step explanation:

From the question we are told that

Mean x= 120  

Standard deviation \sigma= 9

Percentage for men =99.75%

Generally the empirical rule 68%,95% and 99.7% of data value lay b/w 1,2,3 standard deviation of mean  

Standard deviation n= 9

Mean x= 120

Generally the interval  of systolic blood pressure for middle 99.7 of male G is mathematically given as

G=Mean \pm 3* \sigma

G=120 \pm 3*9

G=93\ to\ 147

6 0
2 years ago
Help me with my test
pychu [463]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
That’s a little hint up above. Any help is deeply appreciated. I only have a limited time right now. So please try your best to
dolphi86 [110]
We need to know more information
7 0
3 years ago
If the line you graph is exactly the same as the first one, how many solutions do you
Aleks04 [339]
I think it’s infinitely many
5 0
3 years ago
Bonjour,est ce que vous pouvez me faire cette exo svp
saveliy_v [14]
Salut. BC²=AC²-AB² , BC=√((10)²-(8)²) , BC=√(100-64) , BC=√36 , BC=6cm. J'espere t,avoir aidé
7 0
2 years ago
Other questions:
  • A simple random sample of size n = 200 drivers were asked if they drive a car manufactured in a certain country. Of the 200 driv
    10·1 answer
  • Please help 1st grade homework
    11·2 answers
  • Each person plans to take 2 slices of pizza.mark concludes that he would get more pizza by taking 1 slice from each pizza.instea
    12·1 answer
  • Janet makes 67% of free throws in her basketball games. Her coach wants to know the probability that she will make 7 out of the
    14·2 answers
  • Directions: A triangle has sides with the lengths and angle measures given. Classify each triangle. Write scalene, isosceles, or
    15·2 answers
  • If you increase your bicycle speed by 5.6 miles per hour, the speed will be 17.9 miles per hour. What is your bicycle speed now?
    11·2 answers
  • How many solutions does this equation have?<br> 3(x+2) - 10 = 4x - 6 + x
    8·2 answers
  • Find the value of x:
    6·2 answers
  • Find the distance between the points (<br> –<br> 18,4) and (<br> –<br> 18,<br> –<br> 20).
    8·1 answer
  • Suppose we have a linear equation relating y and x defined by
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!