Vicky bought 3 1/2 pounds of oranges. each pound costs 3.90. which of the following following equations represents the total cost, c, Vicky paid for the oranges and the amount of money she spent?

1 answer

To find the total cost \( c \) that Vicky paid for the oranges, we need to multiply the weight of the oranges by the cost per pound.

  1. Vicky bought \( 3 \frac{1}{2} \) pounds of oranges. This can be converted to an improper fraction: \[ 3 \frac{1}{2} = \frac{7}{2} \text{ pounds} \]

  2. The cost per pound is \( 3.90 \).

  3. The equation representing the total cost \( c \) can be written as: \[ c = \text{(weight in pounds)} \times \text{(cost per pound)} \] Substituting the values gives: \[ c = \frac{7}{2} \times 3.90 \]

You can also express it with a decimal instead of a fraction: \[ c = 3.5 \times 3.90 \]

So, the equation is: \[ c = 3.5 \times 3.90 \] or \[ c = \frac{7}{2} \times 3.90 \]

Both represent the total amount of money Vicky spent on oranges.