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
yKpoI14uk [10]
3 years ago
10

It takes 1 hour for 1 worker to clean an area that is 20 feet by 30 feet. How many workers are needed to clean 18,400 square fee

t in 8 hours?
Mathematics
1 answer:
Lina20 [59]3 years ago
3 0

Answer:

4 workers

Step-by-step explanation:

20 ft x 30 ft = 600 sq ft per worker per hour x 8 hours = 4800 sq ft per worker

18,400 sq ft divided by 4800 = 3.83 so 4 workers

You might be interested in
Please Help!!! Brainliest, Stars, and Hearts!
Nimfa-mama [501]

Answer: 15x - 45

Step-by-step explanation:

(5)(3x) = 15x

(5)(-9) = 45

7 0
3 years ago
A Suppose you played Getting Close with only these game cards:
viva [34]
1/2 and 2/3 because they are the biggest numbers.
9/10 and 5/6 because they are the smallest numbers.
7 0
4 years ago
What is the answer to use an integer to describe sea level
Allisa [31]

Answer:

an integer is any whole number

if it is 5 below sea level then it is -5

Step-by-step explanation:

think of sea level like 0

6 0
3 years ago
A local charity believes they receive more money from people in the Chevy Chase area than from people in the Alexandria area of
kaheart [24]

Answer: The critical value of the test is 2.807.

Step-by-step explanation:

Since we have given that

n = 24

So, the degree of freedom v = n-1 = 24 - 1=23

Since, n>30, so we will use 't-test'.

Here, α = 0.01

so, According to t-table, we get that

t_{\alpha ,v}=t_{0.01,23}=2.807

If we take α, then we are taking about two tail test.

If we take \dfrac{\alpha }{2} then we are talking about one tail test.

But in both the cases, the result will be same.

Hence, the critical value of the test is 2.807.

7 0
4 years ago
The two-way frequency table below shows data on mindset and attendance at practice for students in Mateus's study.
andrezito [222]

Answer:

<u><em>Relative frequencies</em></u>

                  Growth mind set                 fixed mind set             Total

Attendance

every practice              0.7                            0.3                      1

missed at-least

one practice                  0.1344                     0.8656                  1                              

<u>Step-by-step explanation:</u>

                         Growth mind set                 fixed mind set                   total

Attendance

every practice              28                           12                                         40

missed at-least

one practice                  9                              58                                      67

<u><em>Relative frequencies</em></u>

                  Growth mind set                 fixed mind set                   Total

Attendance

every practice              \frac{28}{40} = 0.7                  \frac{12}{40} = 0.3                          1

missed at-least

one practice                  \frac{9}{67} = 0.1344               \frac{58}{67} = 0.8656                  1                              

<u><em>Final answer</em></u>:-

<u><em>Relative frequencies</em></u>

                  Growth mind set                 fixed mind set             Total

Attendance

every practice              0.7                            0.3                      1

missed at-least

one practice                  0.1344                     0.8656                  1  

5 0
3 years ago
Other questions:
  • Determine whether a triangle can be formed with the given side lengths. If so, use Heron's formula to find the area of the trian
    6·1 answer
  • I already filled in the table but I’m not sure what to put as the answer
    8·1 answer
  • A monomial has only one variable. True or false
    7·2 answers
  • 6.3.67 x 10-3 is equivalent to:<br> A. 0.03267<br> B. 3.35.7<br> C. 0.003267<br> D. 3267
    13·1 answer
  • Help me please! All questions answer. Step by step explain it please....!!!
    13·1 answer
  • Attachment pic:<br> Please help
    5·1 answer
  • Full working out for this question please.
    14·2 answers
  • I know the first 2 are right, but usually there are 3 right answers for 5 choices, is there another one or am I good?
    13·2 answers
  • In order to make a safe parachute landing from a mountain top, you must be at least 9,000 feet in the air. At the top of Mount M
    5·2 answers
  • A survey related to professor effectiveness was administered to studentswho chose the professor as the chair of their doctoral c
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!