Lets call x the amount of 18% solution and y the amount of 40% solution, and write as equations the info of the problem:
18x + 40y = 10(20)
x + y = 10
lets multiply the second equation by -18 and add to the first:
18x + 40y = 200
-18x -<span> 18y = -180
</span>----------------------
0 + 22y = 20
y = 20/22 = 10/11
and substitute in the original equation:
x <span>+ y = 10
</span>x = 10 - y
x = 10 - 10/11
x = 110/11 - 10/11
x = 100/11
so they have to use 100/11 liters of 18% solution and 10/11 liters of 40% solution
Compare to standard equation of SHM
Here
Well the above one are for extra knowledge .
Solution:-
So.
Answer:
Hi how are you doing today Jasmine
Answer:
76.96902001
Step-by-step explanation:
We know that the area of a circle is 
so we can take that equation and divide it by two to get your answer. So in this case it would be 
. Hope this helps!
P(compact car) = number of compact cars / total number of cars = 4/25 = 16%
