3 years ago

How many liters of 20% alcohol solution must be mixed with 60 liters of a 90% solution to get a 70% solution

Mathematics

1 answer:

Paha777 [63]3 years ago

7 0

Answer:

24 liters of 20% alcohol

Step-by-step explanation:

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3 years ago

How do I solve 4(5(6))<br><br> This is a hypothetical question

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PEMDAS states that the value in the parenthesis should be evaluated first:
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3 years ago

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Somebody please help me with this !!!

Damm [24]

Step-by-step explanation:

Case 1 :

$3x + 2y = 6 \\ 4x + y = 2 \\ 3x = 6 - 2y \\ x = \frac{6 - 2y}{3} = \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) + y = 2 \\ 8 - \frac{8y}{3} + y = 2 \\ - 1.67y = - 6 \\$