Answer:

Step-by-step explanation:
From AAA, both triangles in this figure are similar. Therefore, we can set up the following proportion:
or
.
Cross-multiplying, we get:
.
Answer:
54 miles/hour
Step-by-step explanation:
His rate in miles per hour will be also his speed: to calculate the speed, we just need to divide the total number of miles travelled by the total number of hours, so we will have the average speed in the course:
Speed = 216 miles / 4 hours = 54 miles/hour
So the rate Max travelled is 54 miles per hour.
0.1[x+250]=5000
10(0.1[x+250]=5000
1[x+250]=50,000
x+250=50,000
-250 -250
x = 49,750