Answer:
408,506
Step-by-step explanation:
Note that if

, then

, and so we can collapse the system of ODEs into a linear ODE:


which is a pretty standard linear ODE with constant coefficients. We have characteristic equation

so that the characteristic solution is

Now let's suppose the particular solution is

. Then

and so

Thus the general solution for

is

and you can find the solution

by simply differentiating

.
14 boxes per hour
60/5=12
12*3=36
60/6=10
10*5=50
50-36=14
Answer:
F(x) = 5x + 7
F(5) = 5*5 + 7 = 25 + 7 = 32
She would need to score 16 correct answers, because 80/5 = 16.