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What is the better deal? 22 vitamins for $1.97 or 40 vitamins for $3.25?

Answer 1

Isaiah Anthony

So the better deal would be #40# vitamins for #$3.25# as one vitamin costs #$0.08125#

case 1:

#22# vitamins for #$1.97#

So, #1# vitamin #=color(blue)($0.0895#

case 2:

#40# vitamins for #$3.25#

So, #1# vitamin #=color(blue)($0.08125#

#color(blue)($0.08125<$0.0895#

So the better deal would be case #2# as one vitamin costs only #$0.08125#

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Answer 2

Julia Adams

To determine the better deal, we need to calculate the cost per vitamin for each option.

For the first option: Cost per vitamin = Total cost / Number of vitamins Cost per vitamin = $1.97 / 22 vitamins

For the second option: Cost per vitamin = Total cost / Number of vitamins Cost per vitamin = $3.25 / 40 vitamins

Comparing the two, the option with the lower cost per vitamin is the better deal.

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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.