Question 821706
---
s = d / t
d = s * t
---
D = 9t
D = (9*4/3)(t - 4/3)
---
9t = (9*4/3)(t - 4/3)
t = (4/3)t - 16/9
(4/3)t - (3/3)t = 16/9
(1/3)t = 16/9
t = 3*16/9
t = 16/3 hours
---
D = 9t
D = 9*16/3
D = 3*16
---
answer:
D = 48 km
---
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