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
Answer:
56 degrees
Step-by-step explanation:
I think group 1 if it is wrong then write is comment box
<em><u>Question:</u></em>
A jeweler is dividing 3/8 of a pound of rubies among 4 lots. What part of a pound will each lot weigh? A.1/4 B.1/8 C.1/16 D.3/32
<em><u>Answer:</u></em>
Option D
Each lot weight
part of pound
<em><u>Solution:</u></em>
Given that,
A jeweler is dividing 3/8 of a pound of rubies among 4 lots
To find: part of a pound each lot weigh
From given,
![\frac{3}{8} \text{ of a pound } = 4 lots](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%20%5Ctext%7B%20of%20a%20pound%20%7D%20%3D%204%20lots)
Let "x" be the part of a pound each lot weigh
Therefore,
![\frac{3}{8} \text{ of a pound } = 4 lots\\\\"x" part = 1\ lots](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%20%5Ctext%7B%20of%20a%20pound%20%7D%20%3D%204%20lots%5C%5C%5C%5C%22x%22%20part%20%3D%201%5C%20lots)
This forms a proportion and solve by cross multiplying
![\frac{3}{8} \times 1 = 4 \times x\\\\x = \frac{3}{32}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B8%7D%20%5Ctimes%201%20%3D%204%20%5Ctimes%20x%5C%5C%5C%5Cx%20%3D%20%5Cfrac%7B3%7D%7B32%7D)
Thus, each lot weight
part of pound