Answer:
(-2, 6.5)
Step-by-step explanation:
Wayne can follow the line from (-2, 0) up to where it crosses the graphed line. The crossing point is approximately halfway between 6 and 7 on the graph, so can be considered to be 6.5.
If we put x=-2 into the equation and evaluate, we get ...
... y = (-3/4)(-2) +5 = 6/4 +5 = (1 1/2) +5 = 6 1/2
Thus the solution is (-2, 6 1/2).
Answer:
16 hours 40 minutes
Step-by-step explanation:
Rate = Volume/time
Rate of Jones = 30 L/hr
Rate of Henderson sprinklers = 15 L/hr
let volume of jones sprinklers be 'x' and volume of henderson sprinklers be 'y'
= 30
dx = 30 dt (integrating both sides)
x=30t
Similarly,
= 15
dy = 15 dt (integrating both sides)
y = 15t
Total volume of water is 750L, therfore;
x + y =750
30t + 15t = 750
t = 750/45
t = 16.667 hrs
or t = 16 hrs 40 mins
