Answer:
i think you got it wrong because you were just supposed to multiply 34 times 2.5 and get 8.5
Answer:
D
Step-by-step explanation:
(10) ^1/2 ^ 3/4x
We know that a^b^c = a^ (b*c)
10 ^(1/2*3/4x)
10 ^(3/8 x)
Let's say we'll mix "x" amount of the 80% solution, how much antifreeze is in it? well is just 80% of antifreeze, and the rest is something else.... what's 80% of "x"? so is (80/100)*x, or 0.8x.
likewise, the mixture will be a 70% solution, and let's say it adds up to "y" amount, so how much antifreeze is in it? well (70/100) * y or 0.7y.
so whatever "x" is, we know that
x + 100 = y.
and we know that
0.8x + 10 = 0.7y.