2w^2 + 44w = 48
w^2 + 22w = 24
w^2 +22w - 24 = 0
w = (-11+sqrt(145)) = 1.0416
The length is about 2w+44 = (46.0832)
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:
I believe the exact answer is 3.91
Answer: 69
Step-by-step explanation:
Answer:
Would it be 90 degrees?
Step-by-step explanation:
