a certain kind of lumber costs $3.00 for 8ft . at this rate how much does 14ft cost

A package of 3 lb of ground beef costs $5.10. How much ground beef could you for $3.40 at this rate?

To find out how much 14ft of lumber costs, first, we need to determine the price per foot.

The given information tells us that $3.00 is the cost for 8ft of lumber. To find the cost per foot, we divide the total cost ($3.00) by the length in feet (8ft):

Price per foot = $3.00 ÷ 8ft
Price per foot = $0.375

Now that we know the cost per foot, we can calculate the cost for 14ft of lumber. To do this, we multiply the length (14ft) by the price per foot ($0.375):

Cost for 14ft = 14ft × $0.375
Cost for 14ft = $5.25

Therefore, 14ft of lumber would cost $5.25.

Set up a proportion:

3/8 = x/14

14 * 3 = 42

42 / 8 = 5 1/4