<PRE><B>Question 923430</B>
s = d/t
c + j = d/t
c + j = 2400/4
j = 2c
c + 2c = 2400/4
3c = 600
---
answer:
c = 200 mph
j = 400 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
---
Convert fractions, decimals, and percents:
https://sooeet.com/math/fraction-decimal-percent.php
---
Calculate and graph the linear regression of any data set:
https://sooeet.com/math/linear-regression.php</PRE>