The price of oranges went from $.90 per lb to $1.20 per lb in five years. Find the rate of change of the price of oranges.

Answer 1

We can use the formula for the rate of change:

rate of change = (new value - old value) / old value

In this case, the old value is $.90 and the new value is $1.20, so we have:

rate of change = ($1.20 - $.90) / $.90

Simplifying the numerator:

rate of change = $.30 / $.90

Dividing:

rate of change = 1/3

So the rate of change of the price of oranges is 1/3, or approximately 33.33%.

Answer 2

0.06 per

Answer 3

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Answer 4

At Store 1 I can buy 36 oz of baby formula for $26.62, and at Store 2 I can buy 28 oz of baby formula for $22.42. Which one is a better buy and by how much?

Answer 5

To determine which one is a better buy, we need to calculate the cost per ounce for each store.

At Store 1, the cost per ounce is:

$26.62 / 36 oz = $0.74/oz

At Store 2, the cost per ounce is:

$22.42 / 28 oz = $0.80/oz

Therefore, Store 1 is the better buy as it has a lower cost per ounce.

To determine the difference in cost, we can calculate the difference in cost per ounce:

$0.80/oz – $0.74/oz = $0.06/oz

So Store 1 is $0.06/oz cheaper than Store 2.