Moana's motorcycle travels for 6 hours 30 minutes at an average speed of 50 kph. How far does she travel in total?

Correct option is

B

4

3

1

hrs

Let time taken in going only by scooter be x hrs.Then, time taken for one way by cycle

=[6

2

1

−x]hrs=[

2

13

−x]hrs

Total time taken for going on cycle both ways=6hrs30min+2hrs10min=8hrs40min=8

60

40

=8

3

2

hrs

∴2[

2

13

−x]=8

3

2

⇒13−2x=8

3

2

⇒2x=13−8

3

2

=4

3

1

hrs

∴ It will take 4

3

1

hrs to go on scooter both ways.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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answers

rauschg

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step-by-step explanation:

$15 each

step-by-step explanation:

$45/3 children= $15 each