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
FrozenT [24]
3 years ago
14

A bicycle store installs about 400 tires per day. Tires are installed Monday through Friday for 8 hours per day. The owner of th

e store estimates the number of properly installed tires per week using the process below. In the first hour of work on Monday, 49 out of 50 tires were properly installed. So, there were about 8(49) = 392 properly installed tires on Monday. Considering 5 working days per week, 5(392) = 1,960 is the number of tires properly installed in one week. Which best explains the validity of the results?
Mathematics
2 answers:
dalvyx [7]3 years ago
6 0
Dividing the number of tires that should be installed per day which  is 400 by the number of working hours which is 8 will give us 50 tires per hour. Assuming that the same mistake will take toll on the workers such that they will have 1 tire mistakenly installed in an hour, they will have 8 erroneous tires in a day. Multiplying this by 5 to make the answer per week will give 40. Out of the 400 x 5  = 2000 tires. The answer would be 2000 - 40 which is equal to 1940. The assumption must be valid. 
Pavel [41]3 years ago
6 0

Answer:

A. The results are likely invalid because it is unlikely that the tires installed in one hour on Monday will represent the entire population of tires.

You might be interested in
F(x) = x-5, g(x) =x^2 - 1 find (f+g)
DaniilM [7]
F(x)=x-5
g(x)=x^2
Now adding f(x) and g(x)
x-5+x^2-1
x^2+x-6
x^2+(3-2)x-6
x^2+3x-2x-6
x(x+3)-2(x+3)
(x-2)(x+3) answer
5 0
2 years ago
The box-and-whisker plot below represents some data set. What percentage of the
Alex

Considering the given box-and-whisker plot, it is found that 50% of the data values are between 16 and 72.

<h3>What does a box-and-whisker plot shows?</h3>

A box and whisker plot shows five things:

  • The minimum value.
  • The 25th percentile, which is the median of the bottom 50%.
  • The median, which splits the entire data-set into two halfs, the bottom 50% and the upper 50%.
  • The 75th percentile, which is the median of the upper 50%.
  • The maximum value.

From this plot, we have that:

  • The 25th percentile is of 16.
  • The 75th percentile is of 72.

Hence, 50% of the data values are between 16 and 72.

More can be learned about a box-and-whisker plot at brainly.com/question/27721471

#SPJ1

5 0
2 years ago
A mystery number is divided by -2 then 7 is added to it to give you a result of 1. What is the mystery number?
alukav5142 [94]
12 divided by -2 the add 7 should give you the answer of 1
3 0
2 years ago
Read 2 more answers
Farmer John sells a dozen of eggs for $1.56. What is the unit cost per egg?
Klio2033 [76]

Step-by-step explanation:

There are 12 in a dozen, so each egg would cost $1.56.

Now, you must multiply $1.56 by 12. Now you can find the answer from here. Hope this helps!

3 0
3 years ago
Read 2 more answers
This graph shows how the length of time a bicycle is rented is related to the rental cost. What is the rate of change shown in t
Romashka-Z-Leto [24]

Answer:

$4/ hour

Step-by-step explanation:

every hour you go you add 4 dollars

example: 1 hour is $2

                2 hours is $6

8 0
3 years ago
Other questions:
  • HELP PLZZZZZZZZZ!!!!!!!!!!
    5·2 answers
  • The hypotenuse of a right triangle has a length of 14 units and a side that is 9 units long. which equation can be used to find
    11·2 answers
  • PLLLLLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME RIGHT NOW ASAP Pinea
    14·1 answer
  • 100 points on the line
    7·2 answers
  • Please help me if you can. Please also write how you got the answer thank you.
    12·1 answer
  • ANoThEr qUeStiOn tO bRiNg mY GrAdEs uP // Ill mark brainliest c:
    14·2 answers
  • PLEASE DO THIS FOR ME, The populations of six countries are listed in this chart. Add one more country of your choosing and add
    13·1 answer
  • Tìm tuần hoàn y = cos2x , y = sin2x
    6·1 answer
  • Evaluate 16x^{0} if x = -3
    6·1 answer
  • Huong was going to sell all of her stamp
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!