sophie leaves school and travels east at an average speed of 40km/h, jenny leaves school one hour later and travels west at an a
verage speed of 50km/h, determine how many hours after jenny leaves school they will be "400km" apart
1 answer:
Considering the speeds given, it is expected Sophie and Jenny are 400 km apart after a total of 5 hours.
<h3>How will their position change over time?</h3>
Jenny:
- 1 hour later: 40 km east
- 2 hours later: 80 km east
- 3 hours later: 120 km east
- 4 hours later: 160 km east
- 5 hours later: 200 km east
Sophie:
- 1 hours later: 0 km
- 2 hours later: 50 km west
- 3 hours later: 100 km west
- 4 hours later: 150 km west
- 5 hours later: 200 km west
<h3>When wil they be 400 km apart?</h3>
It is expected 5 hours later they are 400km apart because at this time each of them will be 200km away from school.
Learn more about kilometers in: brainly.com/question/13987481
#SPJ1
You might be interested in
the common denominator is 6x
we multiply the first term by 2x/2x and the second term by 3/3
(x+1)/3 * 2x/2x - (x+2)/2x* (3/3)
2x(x+1) /6x- (x+2)*3/6x
distribute
(2x^2+2x -3x-6 )/6x
(2x^2-x-6)/6x
The numerator is (2x^2-x-6)
Start with
Multiply and divide by the cubic root of two:
Multiplying the fractions leads to
Course set of 8 and 2/3rds