At the grocery store pretzels are 2.40 for a 12-ounce bag and 18.00 for a 60 ounce container. Maria wants to get 60 ounce for a party she is hosting. How many will Maria save per ounce by making the less expensive selection?
To find out how much Maria will save per ounce by making the less expensive selection, we need to compare the price per ounce of both options.
Let's calculate the price per ounce for each option:
For the 12-ounce bag:
Price per ounce = Total price / Total ounces
Price per ounce = $2.40 / 12 ounces
For the 60-ounce container:
Price per ounce = Total price / Total ounces
Price per ounce = $18.00 / 60 ounces
Now, let's calculate the price per ounce for each option:
Price per ounce for the 12-ounce bag = $0.20/ounce
Price per ounce for the 60-ounce container = $0.30/ounce
To find the savings per ounce, subtract the price per ounce of the less expensive option from the price per ounce of the more expensive option:
Savings per ounce = Price per ounce of the more expensive option - Price per ounce of the less expensive option
Savings per ounce = $0.30/ounce - $0.20/ounce
Savings per ounce = $0.10/ounce
Therefore, Maria will save $0.10 per ounce by making the less expensive selection.
To find out how many Maria will save per ounce by selecting the less expensive option, we need to compare the prices per ounce of the two options.
First, let's calculate the price per ounce for the 12-ounce bag of pretzels:
Price per ounce = Total price / Total ounces
Price per ounce for the 12-ounce bag = $2.40 / 12 ounces
Next, let's calculate the price per ounce for the 60-ounce container of pretzels:
Price per ounce for the 60-ounce container = $18.00 / 60 ounces
Now, we can compare the two prices per ounce:
Price per ounce for the 12-ounce bag = $2.40 / 12 ounces = $0.20 per ounce
Price per ounce for the 60-ounce container = $18.00 / 60 ounces = $0.30 per ounce
To calculate the amount Maria will save per ounce, subtract the price per ounce of the less expensive option from the price per ounce of the more expensive option:
Amount saved per ounce = Price per ounce (less expensive) - Price per ounce (more expensive)
Amount saved per ounce = $0.20 per ounce - $0.30 per ounce
So, Maria will save $0.10 per ounce by choosing the less expensive option.
The 60-ounce container costs 18 dollars or 18/60= <<18/60=.3>>.3 dollar per ounce.
To see how much Maria saves she needs to calculate how much money 3 dollars for 12-ounce amounts to per ounce.
First Maria needs to express 2.40 dollars in terms of ounces, so the price is .20 an ounce.
Next, she needs to find out how many units of .20 ounces make up 1 whole ounce. To do this she divides 1 by .20, finding that .20 ounces make up 5 times as much.
Finally she multiplies .20 times 5, finding that a 12 end up costing four times as much per ounce as a 60, so the Maria saves .3-.2=.1 dollar per ounce by buying the 60 sized container. Answer: \boxed{.1}.