Homework Help: math

Posted by tiffany mccormick on Monday, November 21, 2011 at 9:40am.

Many of the immigrants settled on farm land and they had to drive to town for supplies. One farmer drives to town at 36 miles per hour and returns at 48 miles per hour. If his total driving time is 3 ½ hours, how far is his farm from town?

math - Henry, Tuesday, November 22, 2011 at 9:30pm
t + (36/48)t = 3.5hrs.
t + 0.75t = 3.5,
1.75t = 3.5,
t = 2hrs = Time to reach town.
0.75t = 1.5hrs = Time to return home.

d = v*t = 36 * 2 = 72 Miles.
Or d = 48 * 1.5 = 72 Miles.

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