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3 years ago

9

A farmer has 100 gallons of 70% pure disinfectant. He wishes to mix it with disinfectant which is 90% pure in order to obtain 75

% pure disinfectant. How much of the 90% pure disinfectant must he use?

2 answers:

quester [9]3 years ago

5 0

33.33 Gallons.

Hope this helps! :D

Nana76 [90]3 years ago

4 0

The answrr to this is 33.3 with a bar kn top of the 3 after the decimal. Bc the 3 goes on forever.

Please vote brainliest

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Over [174]

Answer:

[2,6]

Step-by-step explanation:

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Using SohCahToa, we can find the height of the tree. Let the tree height be h. 8m is adjacent to the 30° angle.
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3 years ago

What does 5/7c=13/14 equal

natita [175]

To find c, you must isolate it.
To do this, you must divide both sides by 5/7, since that is being multiplied by c and you must do the inverse to it to cancel it out in order to leave c by itself.

5/7c ÷ 5/7 = c

13/14 ÷ 5/7
To divide fractions, follow these steps:
Step 1- Turn the second fraction, 5/7 in this case, into its reciprocal. This means swapping the places of the numerator and denominator.
5/7 reciprocal = 7/5

Step 2- multiply the original first fraction and reciprocal second fraction.
13/14 • 7/5
13 • 7 = 91
14 • 5 = 70
13/14 ÷ 5/7 = 91/70

Step 3- Simplify if possible.
91/70
Since 70 can go into 90, you can turn this into a mixed number.
1 and 21/70
Now simplify 21/70.
Both can be divided by 7.
21 ÷ 7 = 3
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As a decimal, this is 1.3.

So the answer is c = 1.3, or 1 and 3/10.

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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Neporo4naja [7]

1st find out how much the tip was:
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