Answer:
Let's call x the number of hours spent on the job.
Cheap car shop charges a total (we'll call it T) equal to 77+31x.
Best Repair in Town charges 150.
The sistem is:
T=77+31x
T=150
Solving it you can find the number of hours x that would take Cheap Car Shop to do the job and have a pay equal to the one of Best Repair in town. Under x, Cheap car shop is more convenient, over x, Best Repair in town is more convenient.
Answer:
8.12 is the rounded answer. So whatever point is closest to that.
Step-by-step explanation:
Answer:
Jo started decelerating at the 10th minute
His average speed for the last 30 minutes of the journey is 4/30 km/minute
Step-by-step explanation:
To get what Jo did at 10 minute, we look at the graph.
At the 10th minute, we can see that we have a sharp turn from the top to the zero position at the 20th minute
so we can say that Jo started deceleration at the 10th minute
For the last 30 minutes of the journey, he travelled a distance of 4km
So, mathematically, his average speed will be;
Distance/ time = 4km/30 minutes = 4/30 km/minute