Twenty pounds of a salt-water solution contains fifteen percent salt. How much salt is in the water? 2 lb
1.5 lb
3 lb

3

Step-by-step explanation:

15 percent of 20 pounds is 17 subtract 17 from 20 equals 3

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

that one look

step-by-step explanation: