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

Answer 1

The total cost, c, that Vicky paid for the oranges can be found by multiplying the amount of oranges she bought (3 1/2 pounds) by the cost per pound ($3.90).
To find the total cost, we can use the equation:
c = (3 1/2) * $3.90

To multiply the whole number and the mixed number, we need to convert the mixed number to an improper fraction:
c = 7/2 * $3.90

Now, we can multiply the fractions:
c = (7 * $3.90) / 2

Simplifying the expression, we get:
c = $27.30 / 2

Therefore, the equation that represents the total cost and money spent is:
c = $27.30 / 2 or c = $13.65