Brian and brenda are having a lemonade sale. brenda sells 20 cups of water in 2 hours. how many cups of lemonade did she sell per hour?

She sold 10 cups per hour

Step-by-step explanation:

To find the number per hour, divide the total sold by the total number of hours.

20 cups/2 hours = 10 per hour

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is

3/5

step-by-step explanation:

double number line is not a standard concept, so it must have been defined in your textbook. assume top line is numerator.