10)
Given:
The cost of 8 ounces of shampoo is $0.89.
The cost of 12 ounces of shampoo is $1.47.
Required:
We need to find a better deal.
Explanation:
Consider the first deal.
The cost of 8 ounces of shampoo is $0.89.
Divide the cost of 0.89 by 8 to find the cost for one ounce.
[tex]The\text{ cost of shampoo for one ounce=}\frac{0.89}{8}[/tex][tex]The\text{ cost of shampoo for one ounce=\$}0.11125[/tex]
Consider the second deal.
The cost of 12 ounces of shampoo is $1.47.
Divide the cost of 1.47 by 12 to find the cost for one ounce.
[tex]The\text{ cost of shampoo for one ounce=}\frac{1.47}{12}[/tex][tex]The\text{ cost of shampoo for one ounce=}0.1225[/tex]
We know that $0.11125 is less than $0.1225.
The first deal is better than the second deal.
Final answer:
The best deal is,
The cost of 8 ounces of shampoo is $0.89.
