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elena-s [515]
1 year ago
14

Two questions that i need help answering.

Mathematics
1 answer:
Triss [41]1 year ago
8 0

Answer:

Step-by-step explanation:

6 -Question 13.4

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Misty wishes to obtain 85 ounces of a 40% acid solution by combining a 72% acid solution with a 25% acid solution. How much of e
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13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

<u>Step-by-step explanation:</u>

Total mass of acid required= 85 ounces

Let the mass of 72% acid be 'a'

Let the mass of 25% acid be 'b'

a + b = 85

b = 85-a

85(40/100) = a(72/100) + b(25/100)

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34 - (2125/100) = (72a + 25a) /100

(3400-2125)/100 = 97a /100

97a = 1275

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How may permutations of the word “spell” are there?
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