Susan tips at the rate of 5.00 to 5 waiters. how many waiters will she be tipping, if she can afford a 90.00 tip?

She can tip 90 waiters from her 90.00 tip.

5.00 / 5 waiters = 90.00 / x

5.00x = 90.00 (5)

5.00x = 450

5.00x / 5.00 = 450 / 5.00

x = 90 waiters.

or 5.00 to 5 waiters is equal to 1.00 for every waiter. thus, a $90.00 tip can tip 90 waiters for $1.00 each.