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Inessa [10]
3 years ago
12

This is a statement that is ALWAYS true, forwards and backwards.

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
A conditional statement is always true backwards and forwards

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Pure acid is to be added to a 10% acid solution to obtain 117 L of a 20% acid solution. What amounts of each should be used?
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Answer:

A typical mixture equation

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x + .10(54-x) = .20(54)

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x - .1x = 10.8 - 5.4

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x = 5.4%2F.9

x = 6 L of pure acid to be combined with: 54-6 = 48 L of 10% solution

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
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Alenkinab [10]

Answer:

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We have to find out the number of persons required if the farmer needs to clear his field in 2 number of days.

Therefore according to the information given :

10 days = 5 persons

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Step-by-step explanation:

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