My filter cleans 125 gallons every hour. How many times does my 20 gallon tank get cleaned every hour

6.25 times (6.25 times mean the filter cleans the 20 gallon capacity tank 6 times for fully, and the time the filter cleans only 5 gallons) of 20 gallon tank get cleaned, if the filter cleans 125 gallons for every hour.

Step-by-step explanation:

The given is,

                 Filter cleans 125 gallons every hour

                 How many times 20 gallon tank get cleaned every hour

Step:1

               Formula for number times 20 gallon tank get cleaned is,

                                 ...........(1)

             From the given values,

                   Filter clean capacity per hour = 125 gallons per hour

                                         Capacity of tank = 20 gallons

             Equation (1) becomes,

                                            n = 6.25 times

             Number times 20 gallon tank get cleaned, n = 6.25 times

             Where, 6.25 times mean the filter cleans the 20 gallon capacity tank 6 times for fully, and the time the filter cleans only 5 gallons.  

Result:

            6.25 times of 20 gallon tank get cleaned, if the filter cleans 125 gallons for every hour.

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)