Question

If eight trash bags last for thirty days then how many trash bags do you need for 180 days

Answer 1

Set up the proportion.  Then cross multiply and isolate the variable to solve.

$\frac{8(trash bags)}{30 (days)} = \frac{x (trash bags)}{180 (days)}$

8(180)= 30(x)

$\frac{8(180)}{30} = \frac{30x}{30}$

8(6) = x

48 = x

Answer: 48 trash bags

Answer 2

Let's Just See How Many Times 30 Goes Into 180

$\frac{180}{30} = 6$
Since 8 trash bags last 30 days, let's multiply

$6 \times 8 = 48 \: bags$
ANSWER

You'll Need 48 Trash Bags For 180 Days