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
Arlecino [84]
4 years ago
15

A running group has 38 members. Each group member completed half marathon (13.1 miles). The average time to complete is 110 minu

tes. Based on average time what is the total number of minutes it took all members to complete course.
Mathematics
1 answer:
Vikki [24]4 years ago
8 0

Answer:

They took 4,180 minutes total to complete the course.

Step-by-step explanation:

The average time is given by the sum of each individual time of the members divided by the number of members on the group. So if we want to know the total time they took to complete the course we need to take the average and multiply it by the number of people in the group. So we have:

total time = average*number of members = 110*38 = 4180 minutes

They took 4,180 minutes total to complete the course.

You might be interested in
Find the perimeter. Simplify your answer.
noname [10]

Answer:

32a-18

Step-by-step explanation:

add together the side lengths:

10a-1+6a-8+10a-1+6a-8=(10+6+10+6)a+(-1-8-1-8)= 32a-18

4 0
3 years ago
Read 2 more answers
-5/2n-5 + 2n/2n-5. Step by step explanation??
raketka [301]
Hskaiwjqoqpqkkqiqqoqoqo

8 0
4 years ago
The width of a poster is 4/5 of its length, It takes 36 ft. of metal framing to frame the poster. Find the dimensions of the pos
romanna [79]
The length is 10 and width is 8
4 0
3 years ago
Write y=x^2+24x+124 in vertex form. step by step
soldi70 [24.7K]

Step-by-step explanation:

the general vertex form is

y = a(x - h)² + k

with (h, k) being the vertex of the curve.

after doing all the multiplications we get

y = a(x² - 2hx + h²) + k = ax² - 2ahx + ah² + k

now we have

y = x² + 24x + 124

and we can compare

ax² = x²

a = 1

-2ahx = -2hx = 24x

-2h = 24

h = 24/-2 = -12

ah² + k = 124

(-12)² + k = 124

144 + k = 124

k = -20

so, the vertex form is

y = (x + 12)² - 20

3 0
3 years ago
. A random sample of 100 children with working mothers showed that they were absent from school an average of 6 days per term wi
erica [24]

Answer:

a) The equation is:

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

b) The 98% confidence interval = (5.62784, 6.37216)

Step-by-step explanation:

a. Write down the equation you should use to construct the confidence interval for the average number of days absent per term for all the children. (10 points)

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

b. Determine a 98% confidence interval estimate for the average number of days absent per term for all the children. (10 points)

Confidence Interval = Mean ± Z score × Standard deviation/√Number of samples

Mean = 6 days

Standard deviation = 1.6 days

Number of samples = 100

Z score of 98% confidence interval = 2.326

Confidence interval = 6 ± 2.326 × 1.6/√100

= 6 ± 2.326 × 1.6/10

= 6 ± 0.37216

= 6 - 0.37216

= 5.62784

6 + 0.37216

= 6.37216

Therefore, the 98% confidence interval = (5.62784, 6.37216)

6 0
3 years ago
Other questions:
  • 9 cornstalks in each of 7 rows
    12·1 answer
  • What is 0 divided by 0
    10·1 answer
  • Which on the following is the converse of the statement “if it is summer ,then it is warm outside”?
    9·1 answer
  • Come hither big brains
    13·1 answer
  • Someone help me with this pls
    14·1 answer
  • Pls help !! im awful at trig. pls and ty !​
    15·1 answer
  • The circumference of a circle is 6.28 miles. What is the circle's radius?
    10·1 answer
  • The value of (6-1 – 8-1) -1 is . plz answer fast
    6·1 answer
  • Write equivalent fractions for 1 2/3 and 1 7/8 using 24 as the common denominator 2 24 7 1 0​
    15·1 answer
  • James is saving 5p and 10p coins. He has 75 coins. The ratio of the 5pto the 10p coins is 1 : 1.5. How much are his coins.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!