OpenStudy (fisherdevo):

!!!!!!!!!!!!will fan and medal!!!!!!!!!!!!!!! QUESTOION BELOW

1 year ago
OpenStudy (fisherdevo):
1 year ago

OpenStudy (dumbcow):

Let u = unit rate P = num of people W = num of walls T = time in minutes \[T = u \frac{W}{P}\] First find unit rate \[63 = u (\frac{9}{4}) \] \[u = 63(\frac{4}{9}) = 28\] Now solve for T for 7 people and 4 walls \[T = 28 (\frac{4}{7}) = 16\]

1 year ago
OpenStudy (sshayer):

i solve it by unitary method. |dw:1465428381143:dw|

1 year ago