Complete question :
A runner's racecourse has a total distance of 2.5 mi. Race officials want to mark the course every 200 yd with a flag, including one at the finish line. (The starting line does not need a flag. How many flags are needed?
Answer:
22 flags
Step-by-step explanation:
Given that total distance = 2.5 miles
Marked distance = every 200 yards
Ratio of yard to miles:
1 mile = 1760 yards
Total distance in yards :
Note :
1 mile = 5280 feet
1 yard = 3 feet
Given that:
1 flag per 200 yards
Number of flags :
2.5 miles * (5280 / 1 ) * (1 /3) * (1 / 200) = 22 flags
Similarly ;
Since 1 mile = 1760 yards
Total distance in yards : (2.5 * 1760) = 4400 yards
Number of flags :
Total distance in yards / marked distance
= 4400 / 200
= 22 flags
Minus 28 from both sides
-28-7=7u
Divide by 7 on both sides
-5 = u
Multiply the are of the circle face by the height. To get the are of the face it is πr squared. Round this to 2 decimal places
I think the answer would be 4.1 because the balloon is 4 kilometers, and 1 kilometer from the station. Put them together and you get 4.1 This answer may OR may not be correct, but I am sure this is the answer.
Answer:
3 because sigh changes when you take -3 to other side