28x20=560
7x3=21
560-21=539
539*2=269.5
Answer:
M(B(h))=78.18025h
Step-by-step explanation:
First we have the following equations:
L(h) = 28.75h eq. 1
B(L) = 1.78L eq. 2
M(B) = 1.43B eq. 3
To find the selling price based on the estimated number of hours, we need to start replacing equation 1 in equation 2 as:
B(L) = 1.78*B
B(L(h)) = 1.78*(28.75h)
B(L(h)) = B(h) = 51.175h eq. 4
Finally, if we weplace equation 4 in equation 3, we get:
M(B) = 1.43B
M(B(h)) = 1.43*(51.175h)
M(B(h)) = 73.18025h
So, the composite function that can be used to find the selling price for the labor portion of a bid based on the estimated number of hours is:
M(B(h)) = 73.18025h
Answer:
2.235 $
Step-by-step explanation:
total cost of food = 14.9
15% of 14.9 is 2.235$
Answer:
456 students
Step-by-step explanation:
In order to find 95% of the 480 students, you can set up the equation below:
x * 100 = 480 * 95
x = 45600 / 100 = 456
95% of 480 students is 456 students.
For number 9, you know that it makes 40 copies every five minutes. All you have to do is divide 40 by 5.
40 ÷ 5 = 8
It makes 8 copies every minute.
Your chart can also help you check your answer. It says that it makes 96 copies every 12 minutes and it makes 104 copies every 13 minutes. So multiply 8 by 12 to check it and 8 by 13.
8 • 12 = 96
8 • 13 = 104
Since those answers match up with the chart, it must be correct.
The photocopier makes 8 copies every minute. Hope that helps!
