A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of water in it.

What percent of the water evaporated?

20%

Step-by-step explanation:

.5 million liter is 1/5 of 2.5 million liters.

1/5 = 20%

20% was evaporated

Step-by-step explanation:

.5 million liter is 1/5 of 2.5 million liters

1/5=20%

you would need to know all the numbers that are on there

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10