Carlon plans to evaporate a number of gallons of water from 90 gallons of a 15% salt solution to make a 25% salt solution. which equation can he use to find x, the number of gallons that should be evaporated?

The equation can be used to find x, the number of gallons that should be evaporated is: .

Step-by-step explanation:

Consider the provided information.

Let us consider x is the amount of water Carlon plans to evaporate.

Thus, 90 - x is the amount of water after being evaporated.

The amount of salt is 15% of 90 gallons which can be written as:

The percentage of salt will be:

Hence, the equation can be used to find x, the number of gallons that should be evaporated is: .

probably 12 feet tops

step-by-step explanation:

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.