Answer:
there is only one solution
3x - 1 = 2x
x - 1 = 0
x = 1
I think u will need to add 5ml acid into the solution to get 25% acid
Answer:
Width of T.V. is 21.94 inches Height is 39 inches and area is 855.66 square inch.
Step-by-step explanation:
When we buy an electronic item like T.V or Blue Ray aspect ratio is the term which is used by the salesmen or technicians. Aspect ratio is actually the ratio of length and breadth of the screen of a device or ration of width and height.
In this question aspect ratio of television is given as 16:9
This can be written as
or 
Screen of the T.V. is 65 inch which is the diagonal length of the screen.
We know from pythagoras theorem in a right angle triangle




Now height of the T.V.will be

now area of the T.V.=W×H=39×21.94=855.66 square inch
2.6925 is the mean/ avg you add all the numbers and divide by the amount of numbers you added
A, divide 2.5 by 5 and you get 0.5, multiply that by 9 and you get 4.5. A is the answer