What is two plus two

Mathematics

2 answers:

alisha [4.7K]3 years ago

5 0

Answer:

4??? lol

Step-by-step explanation:

max2010maxim [7]3 years ago

4 0

Answer:

four

Step-by-step explanation:

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A train is leaving in 11 minutes and you are one mile from the station. Assuming you can walk at 4mph and run at 8mph, how much

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7 minutes is the time can you afford to walk

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Given that, train is leaving in 11 minutes and you are one mile from the station

Let "x" represent how much time can you afford to walk

Then, (11 - x) is the time you run

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1 hour = 60 minutes

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$1 = x \times \frac{1}{15} + (11-x) \times \frac{2}{15}\\\\1 = \frac{1}{15}(x + 2(11-x))\\\\1 = \frac{1}{15}(x + 22 - 2x)\\\\x + 22 - 2x = 15\\\\x = 22 - 15\\\\x = 7$