Grant plans to evaporate enough water from 22 gallons of a 16% ammonia solution to make a 24% ammonia solution. which equation can he use to find n, the number of gallons of water he should remove?

The equation used to express n is:

i.e.

step-by-step explanation:

initially we are given 22 gallons of solution that has  16% of ammonia solution.

i.e. it has gallons of ammonia.

Now we are asked to find how much gallons of water is to be removed to obtain a 24% ammonia solution i.e. we are asked to find the value of 'n'.

As we have to just remove water that means the amount of ammonia is same in the new solution i.e. in (22-n) gallons mixture.

i.e.

Hence, the equation used to find n, the number of gallons of water he should remove is:

i.e.

hey there!

12 is twice as much as 6 because 6 goes into 12 2 times.

since the rabbit is twice as tall, we should multiply the weight of the first rabbit, 0.25, by 2.

0.25 x 2 = 0.5

therefore, the 12 inch chocolate rabbit weighs 0.5 lb, or half a pound.

hope this !

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.