Question

Daniel can wash 200 dishes in 30 minutes. About how many dishes can he wash in 1 minute?

Answer 1

Let d = number of dishes Daniel can wash in 1 minute, APPROXIMATELY.

200/d = 30/2

Solve equation for d.

30d = 200(1)

30d = 200

d = 200/30

d = 6.6666666667

Round this decimal number to the nearest ones.

d = 7

Daniel can wash about 7 dishes in one minute.

Answer 2

He can wash about 7 dishes. 200/30 may equal 6.6666, but round it to get 7 since you can't wash part of a dish.