# Judy can buy a 16oz box of cereal for $5.49 or a 20oz box for $5.99. Which is the better buy?

The 20 oz box is better value

Write this in fractional form of a ratio

To maintain the correct proportion of the ratio we would need to multiply the top value in the same way. So we have:

Whilst the 20 oz box cost is $5.99

So the 20 oz box is better value

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To determine the better buy, we need to compare the cost per ounce of each cereal box.

For the 16oz box: Cost per ounce = Total cost / Number of ounces Cost per ounce = $5.49 / 16oz ≈$0.3431 per ounce

For the 20oz box: Cost per ounce = Total cost / Number of ounces Cost per ounce = $5.99 / 20oz ≈$0.2995 per ounce

Comparing the cost per ounce, the 20oz box is the better buy as it has a lower cost per ounce.

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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.

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.

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.

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