SOLUTION: A man rows a boat 500 feet upstream against a constant current in 10 minutes. He the rows 300 feet downstream (with the same current) in 5 minutes. Find the speed of the current an
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: A man rows a boat 500 feet upstream against a constant current in 10 minutes. He the rows 300 feet downstream (with the same current) in 5 minutes. Find the speed of the current an
Log On
Question 821131: A man rows a boat 500 feet upstream against a constant current in 10 minutes. He the rows 300 feet downstream (with the same current) in 5 minutes. Find the speed of the current and the equivalent rate at which he can row in still water. Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
s = d / t
---
up:
x - y = 500/10
x - y = 50
---
down:
x + y = 300/5
x + y = 60
---
x - y = 50
x + y = 60
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
x= 55
y= 5
---
answer:
boat speed = 55 ft/min = 55 ft/min * (1/5280 mile/ft) * (60 min/hr) = 0.625 mph
water speed = 5 ft/min = 5 ft/min * (1/5280 mile/ft) * (60 min/hr) = 0.0568 mph
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
