this an example problem of mixture problem in algebra
since the total amount of the container is 3.2, and let x be
the amount of the solution to be withdrawn.
So the amount of the solution left is (3.2 – x), it also the
amount of the 100 % solution.
0.354(3.2 – x) + 1*(3.2 – x) = 3.2*(0.733)
Solving for x = 1.47 liters is withdrawn
It would be 187 pickles because you do 12x15 and you get 180 then you would add 7 and you get 187
No, it is not. This is because "%" refers to "percent" which means per hundred or over one hundred. Therefore, 0.6% = 0.6*0.01 = 0.006$.
We want to make x^2-3x into a perfect square trinomial. An example of such a trinomial is x^2 + 6x + 9, which is equivalent to the square of (x+3).
From x^2-3x we see that the coefficient of x is -3. Divide this coefficient, -3, by 2, obtaining -3/2. Now square this result: square -3/2. Result: 9/4.
Adding 9/4 to x^2-3x makes x^2-3x into a perfect square trinomial.