ANSWER
Find out the how much fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
To proof
let us assume that the fluid should be drained and replaced with pure antifreeze be x .
As given
A radiator contains 10 quarts of fluid, 30% of which is antifreeze.
Now write 30% in the decimal form

Now write 60% in the decimal form

After drained and replaced the fluid with pure antifreeze than the quantity becomes = ( 10 - x )
The quantity of antifreeze is

The fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
than the equation becomes

solyving
100x +300 - 30x = 600
70x = 300

x = 4.28 quarts (approx)
Hence 4.28 quarts (approx) fluid should be drained and replaced with pure antifreeze so that the new mixture is 60% antifreeze .
Therefore the option (c.) is correct .
Answer:
<h2>x = -5</h2><h2>y = -2</h2>
Step-by-step explanation:

The answer is B. Since the graph increases by 4 on the y-axis as <em>x</em> increases by 1, the constant of proportionality is 4.
5032.34
Y = 0.82 * 6137
<span>Y = 5032.34
</span>
Answer:
1.5 is the value of C
Step-by-step explanation:
first step is by collecting the like terms:
5c+ct3c=9c
-11--3+2=-6
9c-6
9c=6
Divide both side by 6
you'll end up with 1.5.