Inverse variation
y=k/x
k=konstant
(x,y)
x=2
y=8
8=k/2
mult 2
16=k
(x,3)
3=16/x
mult both sides y x
3x=16
diivide 3
x=16/3
(16/3,3)
Answer:
24 days
Step-by-step explanation:
The distance from A to B equals the distance from B to A.
Let the distance between A and B be d.
3 days = 72 hours
4 days = 96 hours
speed = distance/time
speeds are in miles per hour
speed from A to B = d/72
speed from B to A = d/96
difference in speeds:
d/72 - d/96 = d/288
The speed of the water is half of the difference.
speed = d/576
When the raft floats from A to B, it uses only the speed of the water.
d/576 / d/72 = 1/8
The speed of the water is 1/8 the overall speed of the trip from A to B, so traveling by the speed of the water alone must take 8 times longer than with the boat motor.
8 * 3 days = 24 days
<span>3x(1.05)
answer
</span><span>B: 1.05x + 1.05x + 1.05x</span>
Answer:?
Step-by-step explanation: