Question

An experiment measured the evaporation rates of two liquids, liquid A and liquid B, at a certain temperature and pressure. After 2/5 hour, 5/9 cup of liquid A evaporated. After 1/3 hour, 8/9 cup of liquid B evaporated. What is the unit rate for evaporation liquid A. What is the unit rate for evaporation liquid B

Answer 1

The unit rate for liquid A is 25/18 cups of liquid per hour. The unit rate for liquid B will be 8/3 liquid cup per hour, so liquid B evaporated faster and by 23/18 liquid faster. Hope it help!

Answer 2

liquid A will evaporate at 25/18 cups per hour.

liquid B is 8/3 cups per hour.

Explanation:

To calculate the unit rate you need to calculate per hour, remember that unit rate always uses as numerator number 1.

`((5)/(9) )/((2)/(5) ) \\(5*5)/(2*9)=(25)/(18)`

So the liquid A will evaporate at 25/18 cups per hour.

And the liquid B:

`((8)/(9) )/((1)/(3) ) \\(3*8)/(1*9)=(24)/(9)\\(8)/(3)`

So the evaporation rate of liquid B is 8/3 cups per hour.