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kirza4 [7]
2 years ago
7

Geoff wants to make a 100 ml of 5% alcohol solution mixing a quantity of a 2% alcohol solution with a 7% alcohol solution. What

are the quantities of each of the two solutions (2% and 7%) he has to use?
____ ml of the 2% solution

____ ml of the 7% solution
Mathematics
1 answer:
Paha777 [63]2 years ago
7 0

Answer:

3

Step-by-step explanation:

753

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Suppose you have developed a scale that indicates the brightness of sunlight. Each category in the table is 4 times brighter tha
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According to the developed scale, a radiant day is <u>16 times</u> brighter than a dim day.

We assume the brightness of a dim day to be x.

According to the developed scale, the brightness of an illuminated day will be 4 times that of a dim day.

Thus, the brightness of an illuminated day = 4*the brightness of a dim day = 4x.

According to the developed scale, the brightness of a radiant day will be 4 times that of an illuminated day.

Thus, the brightness of a radiant day = 4*the brightness of an illuminated day = 4*4x = 16x.

Now, the ratio of the brightness of a radiant day to the brightness of a dim day = 16x:x = 16x/x = 16:1.

Thus, according to the developed scale, a radiant day is <u>16 times</u> brighter than a dim day.

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The question provided is incomplete. The complete question is:

"Suppose you have developed a scale that indicates the brightness of sunlight. Each category in the table is 4 times brighter than the next lower category. For example, a day that is dazzling is 4 times brighter than a day that is radiant. How many times brighter is a radiant day than a dim day?

Dim=2

Illuminated=3

Radiant=4

Dazzling=5"

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1 year ago
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Travka [436]
A. m < 125° is the answer 

when added together the two angles must be less than 180 degrees. 

when you subtract 55° from 180° you get 125° so you know the angle must be less than 125° since 125° + 55° = 180°

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Answer: 83/100 or .83

Step-by-step explanation:

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Step-by-step explanation:

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