If we call the number x, we can write an equation:
x + 12 = 3x - 32
and now we can solve
- x
12 = 2x - 32
+ 32
44 = 2x
÷ 2
22 = x
So your answer is 22, I hope this helps!
First 40 hours rate = $12 per hour.
Next 10 hours charge ( Upto 50 hours) = A half of $12 that is $6 per hour.
And after next 10 hours chrges ( More than 50 hours) = 2 times of initial rate, that is 2*12 = $24 per hours.
Let us take variale x for number of hours and f(x) is the function for total earning for x hours.
So, we can setup a piecewise function as
Therefore,
70 hours can be divided into = 40 hours + 10 hours + 20 hours.
Total earning of 70-hour week = 12* 40 hours + 6 * 10 hours + 24*20 hours
= 480 + 60 + 480
= $1020.
Therefore, he earn $1020 for a 70-hour week.
6-3y=-6
Move 6 to the other side
Sign changes from +6 to -6
6-6-3y= -6-6
-3y= -6-6
-3y= -12
divide both sides by -3
-3y/-3= -12/-3
Answer: y= 4
Answer: Number of hours they all will take is
Step-by-step explanation:
Since we have given that
Number of hours Walter and Bill takes to do the job = 4 hours
Number of hours Tom alone takes to do the job = 3 hours
We need to find the number of hours takes them together to decorate the room.
Work done by Walter and Bill =
Work done by Tome =
total work done by three is given by
Hence, Number of hours they all will take is