Question

If 16 ounces of laundry detergent costs $3.20, what is the cost of 20 ounces of the same laundry detergent? Which of the following proportions can be used to solve this problem?

Answer 1

To find the cost of 20 ounces of laundry detergent, set up a proportion using the relationship between ounces and cost. Solve the proportion to find the cost of 20 ounces.

Step-by-step explanation:

To find the cost of 20 ounces of laundry detergent, we can set up a proportion using the relationship between ounces and cost. Let's call the cost of 20 ounces x. The proportion we can use is:

16 ounces / $3.20 = 20 ounces / x

To solve for x, we can cross multiply:

16 * x = 20 * $3.20

x = (20 * $3.20) / 16

To calculate the cost of 20 ounces, we divide the product of 20 and $3.20 by 16. The cost of 20 ounces of the same laundry detergent is $4.00.

Learn more about Proportions in Mathematics