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
Dvinal [7]
3 years ago
8

You have just timed a person doing a hair cut for the first time. It took 50 minutes. What unit improvement factor learning curv

e would you use if the person took 35 minutes on the second hair cut?
A. 35 percent
B. 50 percent
C. 70 percent
D. 75 percent
E. 80 percent
Mathematics
1 answer:
Sladkaya [172]3 years ago
3 0

Answer: C. 70 percent

Step-by-step explanation:

Given, Time for the first unit = 50 minutes

Time for the second unit = 35 minutes

The unit improvement factor learning curve = (The time for the second unit) ÷ (time for the first unit) x 100.

So, The unit improvement factor learning curve  = 35÷ 50 × 100 = 70 percent.

Hence, the correct option is "C. 70 percent".

You might be interested in
A graduate school entrance exam has scores that are normally distributed with a mean of 560 and a standard deviation of 90. What
9966 [12]

26.8% of examinees will score between 600 and 700.

This question is based on z score concept.

A Z-score is a numerical measurement that describes a value's relationship to the mean of a group of values. Z-score is measured in terms of standard deviations from the mean. If a Z-score is 0, it indicates that the data point's score is identical to the mean score.

z={x-\mu  \over \sigma }

where:

μ is the mean

σ is the standard deviation of the population

Given:

μ = 560

σ = 90

For

600≤ X≤700

for x = 700

Z score =x - μ/σ

=(700 - 560)/90

      = 1.55556

P-value from Z-Table:

P(560<x<700) = P(x<700) - 0.5 = 0.44009

for x = 600

Z score =x - μ/σ

=(600 - 560)/90

      = 0.44444

P-value from Z-Table:

P(560<x<600) = P(x<600) - 0.5 = 0.17164

∴ P(600<x<700) = P(560<x<700) - P(560<x<600)

                           = 0.44009 - 0.17164

                          =0.26845

∴26.8% percentage of examinees will score between 600 and 700.

Learn more about Z score here :

brainly.com/question/15016913

#SPJ4

4 0
1 year ago
Find the measure of angle C of a triangle ABC, if angle A=a and angle B= 2a.
erma4kov [3.2K]
3.14 - 3a Radians

Because
180o = 3.14 radian
3 0
2 years ago
0<br> 류<br> In<br> +<br> 0<br> 4<br> 1<br> 6<br> 1<br> Which fraction is equal to<br> 좋
Diano4ka-milaya [45]

Answer:

B = 6/8

Step-by-step explanation:

3 x 2 = 6

____ __

4 x 2 8

(Equivalent fraction)

5 0
3 years ago
V144 = V121<br> What does this even mean
Over [174]

Answer:

That equation doesn't make sense, so this equation means "no solution"

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
john ran at a pace of 3.5 miles per hour for a distance of 10.5 miles. how many minutes did it take him to run 10.5 miles? use t
Rainbow [258]

The minutes it takes him to run 10.5 miles is 180 minutes

<h3>How many minutes did it take him to run 10.5 miles?</h3>

The given parameters are

Speed = 3.5 miles per hour

Distance = 10.5 miles

The time is calculated as:

Time = Distance/Speed

So, we have

Time = 10.5 miles/3.5 miles per hour

Evaluate the quotient

Time = 3 hours

Convert to minutes

Time  = 180 minutes

Hence, the minutes it takes him to run 10.5 miles is 180 minutes

Read more about speed at:

brainly.com/question/6504879

#SPJ1

5 0
1 year ago
Other questions:
  • Solve the following inequality -6 &gt; - 3c
    10·1 answer
  • Vincent van Gogh is making one-color versions of all his paintings. He uses colors in the following order from the beginning: re
    14·2 answers
  • What is three ways to find 3 times 2 times 4?
    7·1 answer
  • Someone came into a store and stole 100 dollars from the register. The person returned 5 minutes later and purchased 70 dollars
    6·1 answer
  • Please help me with problem 1.
    13·1 answer
  • How many equal line segments are needed to make a line of 30 triangles
    7·1 answer
  • A certain brand of refrigerator has a useful life that is normally distributed with mean 10 years and standard deviation 3 years
    11·1 answer
  • When brody goes bowling, his scores are normally distributed with a mean of 185 and a standard deviation of 14. Using the empiri
    15·1 answer
  • Amelia filled 1/8 of her new aquarium with gravel. How much gravel did Amelia use?
    13·2 answers
  • Susan earned $220 babysitting last week.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!