It takes 12 hours to clean the windows of a certain office building. During the first day of cleaning, the workers were able to clean for 9 hours. If the variable t stands for the amount of time the workers have left to clean the windows, which of the following choices is the most reasonable value for t?A.
3 hours
B.
1 hour
C.
30 hours
D.
20 hours
Answers
Since it would take 12 hours to clean the place and the workers already cleaned for 9 hours, there is still 3 hours left to completely clean the office building. (12 - 9 = 3)
t ... the amount of time the workers have left to clean the windows
t = 12 hours - 9 hours = 12 - 9 = 3 hours
The correct result would be A. 3 hours.
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Cheryl went on a 3-hour train ride. The train traveled at an average speed of 75 miles per hour. What was the total distance in miles that Cheryl traveled?A)225 B)215 C)25 D)72
What number multiplied by 25 gives you 32
Answers
I think the 3rd one, please let me know if I'm wrong. I don't want to give others the incorrect answer.
Step-by-step explanation:
2 x -3(x)- 1(y)- 2 x -1(z)= -5
Answer:
(-3,1,-1)............
Answers
Answer:
-4ab.
Step-by-step explanation:
If the temperature is -2 degrees and it goes down another 2 degrees the new temperature is -2-2 = -4.
-2ab - 2ab = -4ab.
Answer:
-4ab because if you have a balance of negative two dollars and you spend two more dollars you have a balance of negative 4 dollars
Step-by-step explanation:
Answers
1) x = 180° - 45° - 56° 4) a = 180° - 63° - 90°
x = 79° a = 27°
2) z = 180° - 44° - 90° 5) a = 180° - 135°
z = 46° a = 45°
3) x = 180° - 47° - 45° 6) x = 180° - 52° - 90°
x = 88° x = 38°
y = 180° - 133°
y = 47°
Answers
The value of labor cost as a percentage of Revenue is, 32%.
What is mean by Percentage?
A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
To Calculate the percent of a number , divide the number by whole number and multiply by 100.
We have to given that;
The Revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40 hours each.
Now,
The total labor cost for 2 workers = 2 × 8 × 40
= $640
Hence, The value of labor cost as a percentage of Revenue is,
⇒ (640/2000) x 100
⇒ 64 / 2
⇒ 32%
Therefore, We get;
The value of labor cost as a percentage of Revenue is,
⇒ 32%
Learn more about the percent visit:
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labor cost per worker working 40 hrs = 8 . 40 = 320
for 2 workers = 640
as a % of revenue = ( 640 . 100)/2000 = 32%
Answers
Answer: -1/3
Step-by-step explanation:
gradient = change in y/change in x
gradient = 7-8/6-3
gradient = -1/3
Answers
=