Question 935020
r = w/t
t = w/r
---
r = 78/5 boxes/minute
t = 3900/(78/5)
t = 250 minutes
t = 250 minutes * (1/60 hour/minute) = 4.17 hours
t = 4 hours and (0.17 hour * 60 minutes/hour) minutes
t = 4 hours and 10.2 minutes
---
Free algebra tutoring live chat:
https://sooeet.com/chat.php?gn=algebra
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations with 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
---