Alice sleeps an average of 9 hours per night. a cat can sleep up to 20 hours per day. about how many more hours does a cat sleep in 1 month that alice?

Cat  sleeps 420 hours than Alice  in a month

Step-by-step explanation:

Given:

Number of  hours Alice sleeps per night = 9 hours

Number of  hours Cat sleeps per night = 20 hours

To Find:

How many more hours does a cat sleep in 1 month that Alice

Solution:

Let

The total number of hours for which Alice Sleeps in one month be x

The total number of hours for which Cat sleeps in one month be y

Step 1: Number of hours for which Alice Sleeps in one month

X = number of days in a month  X  Number of hours Alice sleeps per night

X = 30 X 9

X = 180 Hours

Step 2: Number of hours for which Cat Sleeps in one month

y= number of days in a month  X  Number of hours cat sleeps per night

y = 30 X 20

y = 600 Hours

Now ,

=> y – x  

=>600 – 180

=>420 hours