Answer:
5.2 (3.1 + 1.9) = (5.2 • 3.1) + (5.2 • 1.9)
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Well, 4 people are each paying the same amount... the price they are all paying together is $12... basically, do 12 / 4, and you get three.
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.
Answer:
substitute 3 as in x:
4(3)-9
= 12-9
= 3
Hope this helped - have a nice day & be safe
It would be 65%. if red is 25% and blue is 10%, the remaining amount is 65%