Let f and e represent the amount of 40% and 80% solutions used...
We are told the f+e=20 which means that f=20-e and we can say that:
(.4f+.8e)/20=.7, using f=20-e in this equation we see that:
.4(20-e)+.8e=14
8-.4e+.8e=14
8+.4e=14
.4e=6
e=15, and since f=20-e then
f=5
So 15 quarts of 80% solution is mixed with 5 quarts of 40% solution to produce a 20 quart mixture of 70% solution.
Answer:
FG i think
Step-by-step explanation:
The formula being used is V=
![\pi](https://tex.z-dn.net/?f=%20%5Cpi)
r^2(h/3)
V≈235
V=235.62 to be approximate
Yes because when you divide 27 by 51, you get 0.529411765. When you divide 18 by 34you get the same answer.
Description:
This will be no solution because when we add 10 to both sides of the equation then simplify it. After that we will subtract 6 from both sides. It will give us no solution. For more info please see the attachment.
Answer: No solution
Hope this helps.