Answer:
5.714 liters of the 5% solution and 4.286 of the 40%.
Step-by-step explanation:
Let x be the volume of 40% solution and y = volume of the 5% solution.
x + y = 10
0.40x + 0.05y = 0.20(x + y)
From the first equation x = 10 -y so we have:
0.40(10 - y) + 0.05y = 0.20( 10 - y + y)
4 - 0.40y + 0.05y = 2
-0.35y = -2
y = 5.714 liters of the 5%.
and x = 10 - 5.714 = 4.286 liters of the 40% solution.
Step-by-step explanation:
This is the formula for percentage increase and decrease
The answer to the question is 1 and 3/4
C + 9 because you are adding o mode cars and an expression doesn't have an equal sign (=)
2:50
1:14
0:14
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4:18 hours
They came back at 2:45
So, the movie started at 11:27 AM
