SOLUTION: two cars leave denver at the same time and travel in opposite directions. One car travels 10 mi/h faster than the other car. The cars are 300 mi apart in 3h. How fast is each car t
Algebra ->
Customizable Word Problem Solvers
-> Travel
-> SOLUTION: two cars leave denver at the same time and travel in opposite directions. One car travels 10 mi/h faster than the other car. The cars are 300 mi apart in 3h. How fast is each car t
Log On
Question 820735: two cars leave denver at the same time and travel in opposite directions. One car travels 10 mi/h faster than the other car. The cars are 300 mi apart in 3h. How fast is each car traveling? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
relative speed of cars:
s = d / t
s = 300 / 3
s = 100 mph
---
x + y = 100
x = y + 10
---
put the system of linear equations into standard form
---
x + y = 100
x - y = 10
---
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= 45
---
answer:
car-1 = 55 mph
car-2 = 45 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
