Pierre is rowing his kayak on a lake. He moves 1 1/4miles in 18 minutes. At this rate, how far would he move in 30 minutes?
A.
2 1/12 miles
B.
30 5/72miles
C.
18 miles
D.
5/72 of a mile
First, we need to calculate Pierre's speed in miles per minute.
1 1/4 miles is the same as 5/4 miles.
Therefore, in 18 minutes, Pierre covers a distance of 5/4 miles. To find his speed per minute, we divide 5/4 by 18:
(5/4) / 18 = 5/72 miles per minute.
To find out how far Pierre would move in 30 minutes, we can multiply his speed per minute by 30:
(5/72) x 30 = 150/72 = 2 1/12 miles.
Therefore, Pierre would move 2 1/12 miles in 30 minutes. The correct answer is:
A. 2 1/12 miles