Final answer:
To find out how many lemons Casey bought for $4.80, we can set up a proportion using the information about James' purchase. Solving the proportion gives us x = 20, so Casey bought 20 lemons for $4.80.
Step-by-step explanation:
To find out how many lemons Casey bought for $4.80, we need to use the information given about James' purchase. James bought 6 lemons for $1.44. We can set up a proportion to solve the problem:
Number of lemons bought / Total cost = Number of lemons Casey will buy / Total cost Casey will spend
Substituting the given values, we have:
6 lemons / $1.44 = x lemons / $4.80
To solve for x, we cross multiply:
6 * $4.80 = $1.44 * x
28.8 = $1.44x
Dividing both sides of the equation by $1.44, we get:
x = 28.8 / $1.44 = 20
Therefore, Casey bought 20 lemons for $4.80.