SOLUTION: A boat traveled 36 km downstream in 2h. the return trip upstream took 3 h. find the rate of the current.
i got d=rt
downstream 72=(x+y)5
upstream 72=(x-y)5
then i sol
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-> SOLUTION: A boat traveled 36 km downstream in 2h. the return trip upstream took 3 h. find the rate of the current.
i got d=rt
downstream 72=(x+y)5
upstream 72=(x-y)5
then i sol
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Question 34979This question is from textbook Algebra and Trigonometry Structure and Method
: A boat traveled 36 km downstream in 2h. the return trip upstream took 3 h. find the rate of the current.
i got d=rt
downstream 72=(x+y)5
upstream 72=(x-y)5
then i solved for x and got 180 but when i tried for y everything cancels itself out, help please... This question is from textbook Algebra and Trigonometry Structure and Method
You can put this solution on YOUR website! Let the speed of the boat be x
Let the speed of the current be y
Equation 1:
2x+2y=36
y=18-x (subsitution)
3x-3y=36
Subsitute for yL
3x-3(18-x)=36
6x=36+54
x=15
y=18-15
y=3
Hence, the speed of the boat is 15mph And the speed of the current is 3mph.
Paul.
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