A dozen apples costs $3.05. At this rate, how much would 7 apples cost?
Just use a simple ratio:
x/7 = 3.05 / 12
x = 7(3.05)/12
round to the nearest cent.
This is not correct
To find out how much 7 apples would cost, we first need to determine the cost of one apple.
We know that a dozen apples costs $3.05, and a dozen consists of 12 apples. So, we divide the cost of a dozen by 12 to find the cost of one apple:
$3.05 ÷ 12 = $0.2541666667 (rounded to $0.25, if we want to work with two decimal places)
Therefore, the cost of one apple is $0.25.
Now that we know the cost of one apple, we can multiply this by the number of apples we want to find the total cost.
$0.25 × 7 = $1.75
Therefore, 7 apples would cost $1.75.