Answer: 7.8 days
<u>Step-by-step explanation:</u>
Painter can get the job done in 15 days so gets 
of the job done in 1 day.
Coworker can get the job done in 10 days so gets 
of the job done in 1 day.
Together, they get 
of the job done in 1 day.
Painter worked for 3 days so completed 
of the job.
That leaves a remaining of 
of the job to be completed.
Let x represent the number of days it will take them to work together.
Painter + Coworker = Together
Multiply by 30 to eliminate the denominator:
Simplify and solve for x:
2x + 3x = 24
5x = 24
x = 4.8
Remember that Painter worked 3 days alone in addition to the 4.8 days they worked together.
So the total time to paint the building is 3 + 4.8 = 7.8
Answer:
The answer is 80
Step-by-step explanation:
we know that
the outlier is 50, as it is not around the other numbers in the data set.
therefore
mean=[76+ 79 + 80 + 82+ 78 + 83 + 79 + 81 + 82]/9
mean=[720]/9
mean=80
The <span>accurate estimation is 55</span><span />
Ok so this person was paid $422.75 this week for working one week. $42.75 though, was added onto her normal paycheck because she worked overtime. So we subtract the $42.75 from the $422.75 to get $380. So if she made that normal money by working for 40 hours we need to find how much money she makes in one hour. SO we just do 380/40 to get $9.50 per hour
Hope that helped.... If i explained it weird and you still don't get it PM me and i can try to reexplain :)
Answer:the answer to this is 0.009
Step-by-step explanation:
