Answer:
need to work out how long it would take 1 person first.
9 X 5 = 45
1 person will take 45 hours
45/3= 15 hours
Answer:
a = (4/3)b
Step-by-step explanation:
The governing equation here has the form y = kx, where k is the constant of proportionality.
Let's rewrite that as a = kb, and then substitute -4 for a and -3 for b:
-4 = k(-3), or k = 4/3
Then a = (4/3)b
The gradient of the tangent line to 
at 
is given by the value of the derivative at 
. We have
We're told that 
. Then
