Two window washers start at heights different heights. One is 21 ft. high and riding at a rate of 8 in./s, the other is at 50 ft high and descending a 11 in./s. Write and solve an equation to find how long it takes the two window washers to reach the same height?

Answer 1

converting to feet:
21 + (8/12)t = 50 - (11/12)t

solve for t

or
converting to inches:
252 + 8t = 600 - 11t

you will get the same solution for t