Question

A cashier rung up 2 costumer's in 8 minutes at this rate how many coustomers can he ring up in 30 minutes

Answer 1

1 customer every 4 minutes

30/4=7.5

So he can ring up about 7 customers in 30 minutes

Answer 2

Answer: 7 customers (or 7.5).

Step-by-step explanation:

We can create and solve a proportion to find how many customers he can ring up in 30 minutes.

      $\dfrac{2}{8\;min} =\dfrac{x}{30\;min}$

Cross multiply.

      8 * x = 2 * 30

      8x = 60

Divide both sides of the equation by 8.

      x = 7.5

We will round down, since you cannot have half of a customer. This gives us our answer, he can ring up 7 customers in 30 minutes.