Subtract -5x^2+10x from 6x^2-x+3
2 answers:
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So... let's change the concentration percentage to decimal format. .. so 40% is just 4/100 or 0.4 and so on.
so... whatever "x" and "y" may be, we know the must add up to 6 liters.
and whatever 0.4x and 0.8y are, we also know, they must add up to a 3 of concentrated amount.
thus
solve for "x", to see how much of the 40% solution will be needed.
what about "y"? well, y = 6 - x.
so... whatever "x" and "y" may be, we know the must add up to 6 liters.
and whatever 0.4x and 0.8y are, we also know, they must add up to a 3 of concentrated amount.
thus
solve for "x", to see how much of the 40% solution will be needed.
what about "y"? well, y = 6 - x.
Answer:
0
Step-by-step explanation:
-20.5 is the same as -20.5, since anything to the zero power is equal to 1.