It is a Saturday morning and Alexis has discovered he has a leak coming from the water heater in his attic. Since plumbers charge extra to come out on weekends, Alexis is planning to use buckets to catch the dripping water. He places a bucket under the drip and steps outside to walk the dog. In 12 minutes the bucket is 2/5 of the way full.

2 buckets per hour.

Step-by-step explanation:

Here is the completed question:

Saturday morning and Alexis has discovered he has a leak comin from the heater in the attic. Since plumbers charge extra to come out on weekends, Alexis is planning to use buckets to catch the drilling waster. He places a bucket under the drip and steps outside to walk the dog. In 12 mins the bucket is 2/5 of the way full. What is the unit rate at which the water is leaking in buckets per hour?

Since the bucket is 2/5 full in 12 minutes, we have to calculate how the capacity of buckets used in an hour.

We should note that 60 minutes = 1 hour. Therefore, the unit rate at which the water is leaking in buckets per hour will be:

= 2/5 × 60/12

= 2/5 × 5

= 2 buckets

The answer is 2 buckets per hour.

+/- 5.26

Step-by-step explanation:

Subtract both sides by 2x^2

.8x^2 = 22.1

Divide by .8

x^2 = 27.625

Take the square root on both sides

x = +/- 5.26

It's either a positive or a negative number because the sign doesn't matter when you square the number so we have to account for both possibilities.