Solution A is 30% alcohol and solution B is 60% alcohol. How much of each is needed to make 80 liters of a solution that is 45%
1 answer:
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Answer:
0.33 ft
Step-by-step explanation:
From the diagram, triangle ACE is similar to triangle BCD.
Therefore,
Let the Length of the Ladder, L
Using Pythagoras theorem
To find the least value, we have to equate the derivative of L to 0.
Therefore:
b³-1080=0
b³=1080
b=10.26
The minimum length of the ladder is:
=0.33 ft
