SOLUTION: test tomorrow-practice question and I can not set it up. 2 hikers, Fred and Sky start at opposite ends of the National trail. The trail is twelve miles long and they meet in an h
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Question 964565: test tomorrow-practice question and I can not set it up. 2 hikers, Fred and Sky start at opposite ends of the National trail. The trail is twelve miles long and they meet in an hour and a half. Fred hikes 4 mph faster than sky. Find both hiking speeds. Let Sky be x and Fred x + 4? Sky be x and Fred be Y and Y=(x + 4)?
D = r . t
12 x 1.5
12 y 1.5
y=(x + 4) ? where how we are working in two variables, linear equations
test tomorrow 8 am phoenix time What ae the two equations and solutions? Answer by macston(5194) (Show Source):
You can put this solution on YOUR website! .
S=Sky's rate; F=Fred's rate=S+4mph
12 miles/1.5=8 miles/hour The combined speed of the hikers is 8 mph.
S+F=8mph Substitute for F
S+S+4mph=8mph
2S=4mph
S=2mph ANSWER 1: Sky's speed is 2 miles per hour.
F=S+4mph=2mph+4mph=6mph ANSWER 2: Fred's speed is 6 miles per hour
