10 quarts of 20 % salt solution mixed with 5 quarts of 80 % salt solution to make 15 quarts of 40 % salt solution
<em><u>Solution:</u></em>
The final mixture is 15 quarts
Let amount of 20% solution to be mixed, be x
Then, the amount of 80 % solution to be mixed is 15 - x
Thus, we can say,
"x" quarts of 20 % salt solution mixed with (15 - x) quarts of 80 % salt solution to make 15 quarts of 40 % salt solution
thus, we frame a equation as,
Thus 10 quarts of 20 % solution is mixed
Then, 15 - x = 15 - 10 = 5
5 quarts of 80 % salt solution is mixed
Answer:
420miles
Step-by-step explanation:
240/4=60MI/H
Oscar's speed is 240mi/4h = 60mi/h
How far he drives in 7 hours: 60mi/h * 7h = 420mi
B/9 is your answer
have a good evening
Answer:
https://www.mathpapa.com/algebra-calculator.html?q=y%3D23x%E2%88%922
Step-by-step explanation: