Question

A store sells bubble gum by the inch. The equation p = 0.25L represents the price p (in dollars) of a piece of bubble gum that is inches L long. How much does the chain cost per foot?

Answer 1

To find the cost of bubble gum per foot, substitute the value for L (12 inches) in the given price equation. The calculation results in a cost of $3.00 per foot for the bubble gum.

Step-by-step explanation:

The student's question involves determining the cost per foot of bubble gum when the price p is given as $0.25 per inch (L). To arrive at the cost per foot, we first need to know how many inches are in a foot, which is 12 inches. Using the given equation p = 0.25L, we can calculate the price per foot by substituting L with 12.

Let's proceed with the calculation:

1. Understand the given equation: p = 0.25L, where p is the price in dollars and L is the length in inches.
2. Know the conversion: 1 foot = 12 inches.
3. Substitute 12 for L in the equation: p = 0.25 × 12.
4. Calculate the result: p = $3.00.
   

Therefore, the cost of bubble gum per foot is $3.00.