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If 10 balloons cost $0.15, how much would 50 balloons cost?

Answer 1

Nathan Axel

50 balloons will cost 75 cents.

One way to begin this is by examining a ration:

$0.15 : 10 balloons = c : 50 balloons where c is the cost.

After rewriting and solving, you get:

#($0.15)/(10 ballo ons) = c/(50 ballo ons)#

#(50 ballo ons) * ($0.15)/(10 ballo ons) = (50 ballo ons) * c/(50 ballo ons)#

#(50 cancel(ballo ons)) * ($0.15)/(10 cancel(ballo ons)) = cancel(ballo ons) * c/cancel(ballo ons))#

#(50 * $0.15)/10 = c#

#c = 5 * $0.15#

#c = $0.75# or 75 cents

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Answer 2

Eva Abramson

50 balloons would cost $0.75.

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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.