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A farmer gives each of his horses #1/2# of a salt lick a month. If he has 2 horses, how many salt licks does he use a month?

Answer 1

Roman Alvarez

1 salt lick

Since #1# horse gets #1/2# salt lick in one month, it follows that #2# horses will get

#2 xx 1/2 = "1 salt lick" -># in one month

#2 xx "1 horse" = 2 xx 1/2 "salt lick" = "1 salt lick"#

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Answer 2

Genesis Amaya

If the farmer has 2 horses and each horse receives ( \frac{1}{2} ) of a salt lick per month, then he uses ( 2 \times \frac{1}{2} = 1 ) salt lick per month. Therefore, he uses 1 salt lick per month.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.