Faith mixes 14 liters of 12% acid solution with a 30% acid solution to make a 18% acid solution

Suppose Faith mixes the 14 L of 12% solution with L of the 30% solution. Then the new solution, with a concentration of 18% acid, has a total volume of L.

For each liter used of the 12% solution, 0.12 L of acid is contributed; for each liter of the 30% solution used, 0.3 L of acid is contributed. In the new solution, each liter contributes 0.18 L of acid. So the amount of acid in the mixture satisfies

Solve for :

So Faith must use 7 L of the 30% solution to end up with the concentration she wants.

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation: