The answer to the question is A
Answer:
First brand of antifreeze: 21 gallons
Second brand of antifreeze: 9 gallons
Step-by-step explanation:
Let's call A the amount of first brand of antifreeze. 20% pure antifreeze
Let's call B the amount of second brand of antifreeze. 70% pure antifreeze
The resulting mixture should have 35% pure antifreeze, and 30 gallons.
Then we know that the total amount of mixture will be:

Then the total amount of pure antifreeze in the mixture will be:


Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -0.7 and add it to the second equation:



+

--------------------------------------



We substitute the value of A into one of the two equations and solve for B.


A circle with a radius of 4cm sits inside a circle with a radius of 11cm
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
Answer: 329.86 cm
We are given volume of a shipping container = 448.656 cubic inches.
And this shipping container can hold = 24 smaller boxes.
Volume of each small box =
.
= 
On dividing 448.656 by 24 we get
= 18.694.
<h3>Therefore, the volume of each of the smaller boxes is C. 18.694 cubic inches .</h3>
Answer:
there is no function
Step-by-step explanation: