A window washer cleaned 38 windows in 2 hours. At this rate, how many windows did he clean in 7 hours?
Hint: Find Unit Rate
He cleaned 106 windows in 7 hours.
wrong again!
2 hours for 38 window
in 1 hour , do 19 windows
so in 7 hours, do 7*19 or 133 window
or
w/7 = 38/2
w = 7(38/2) = 133