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Andrew [12]
3 years ago
6

If 40% is equal to the fraction X over 30 what is the value of X

Mathematics
1 answer:
Fofino [41]3 years ago
6 0

Answer: the answer is 12

Step-by-step explanation:

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How do you use the distance formula and slope formula to find the lengths of a quadrilateral?
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Factor the expression completely <br> -15t-6
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In the lab, Leila has two solutions that contain alcohol and is mixing them with each other. Solution A is alcohol and Solution
torisob [31]

Answer:

300ml

Step-by-step explanation:

As values are missing in your question, the complete question is:

In the lab, Leila has two solutions that contain alcohol and is mixing them with each other. Solution A is 6% alcohol and Solution B is 20% alcohol. She uses 400 milliliters of Solution A. How many milliliters of Solution B does she use, if the resulting mixture is a 12% alcohol solution?

Considering  x=ml of 20% solution B

Therefore, 400+x=ml of resulting 12% solution

Solution A alcohol+ solution B alcohol= Alcohol solution

6% (400)+ 20%x = 12%(400+x)    ->(converting percentage into decimal)

.06*400+.2x=.12(400+x)

24+.2x=48+.12x

.08x=24

x=24/.08=300 ml

she used 300 milliliters of 20%Solution B in resulting mixture.

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3 years ago
If a line is perfectly vertical, meaning it reaches all y- at a single x-, which kind of slope does it have?
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Answer:

B. Undefined

Step-by-step explanation:

A function cannot have more than one x value with different y values. A vertical line means this happens infinite times. It is undefined.

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