What is 4 1/3 divided by 2 3/5? A. 1 2/3 B. 2 3/5 C. 2 1/5 D. 1 4/5
1 answer:
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Answer:
<em>2.5 hours</em>
<u>Skills needed: Speed, distance, time problems</u>
Step-by-step explanation:
1) We are given speed and distance, and have to find out the the time (in hours).
- In terms of units, everything is matched up (Since distance and speed use kilometers, and speed and time use hours).
- Time is always the distance you travelled (how far) divided by how fast you travelled (the rate/speed)
---> We can use the formula for time:
t= time
d=distance
r=rate/speed
2) Now, let's plug in for distance and rate.
--->
2.5 hours is the answer.
<u><em>The coordinates of the points A and B are not given. We'll assume: A(3,1) B(12,-5)</em></u>
Answer:
<em>The coordinates of E are (6,-1)</em>
Step-by-step explanation:
<u>Partition of a Segment</u>
The length of segment directed from A(xa,ya) to B(xb,yb) can be decomposed in its x,y coordinates:
If a point E is to be in the segment and partition it into a ratio 1:2, then
\displaystyle \frac{x_{AE}}{{x_{EB}}=\frac{y_{AE}}{{y_{EB}}=\frac{1}{2}
But
Then we set the equation:
Operating and rearranging
Solving
Similarily
The coordinates of E are (6,-1)