Answer:
Amy worked for 128 hours while Brayden worked for 112 hours
Step-by-step explanation:
Given
Let A represents Amy and B represents Brayden
A = 16 + B ------(1)
A:B = 8:7------- (2)
Required
Find A and B;
Convert (2) to fractions
Cross Multiply
Substitute A = 16 + B in the above expression
Open Bracket
Subtract 7B from both sides
Recall that A = 16 + B
Hence, 
<em>This implies that Amy worked for 128 hours while Brayden worked for 112 hours</em>
Answer: she printed 200 programs
Step-by-step explanation:
Let x represent the number of programs that were printed.
The printing cost was $0.32 per program. This means that the total cost of printing x programs would be 0.32 × x = $0.32x
They were priced at $0.50 each. This means that the total revenue from selling x programs is 0.5 × x = $0.5x
Taylor sold all but 50 programs. It means that the number of programs sold is
x - 50 and the total revenue from the number of programs sold is 0.5(x - 50)
Revenue - cost = profit
Taylor made a small profit of $11. It means that
0.5(x - 50) - 0.32x= 11
0.5x - 25 - 0.32x = 11
0.5x - 0.32x = 11 + 25
0.18x = 36
x = 36/0.18
x = 200
Answer:
Domain : D{-∞,∞} the reals.
Step-by-step explanation:
The function is plotted in the image.
[tex] f(x) = -3.15 * x + 723.45 [tex]
the linear functions usually have a domain from - infinite to infinite, the domain when is a piece wise function or discontinuous, the domain is defined in the pieces where is defined.
In this case there is no restriction so the function is continuous.
