Vicky bought 3 and 1 over 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?
3.90 c equals 3.5 ; Vicky paid $0.90.
c over 3.90=3.5; Vicky paid $1.11.
3.90 over 3.5=c; Vicky paid $13.65.
c over 3.5=3.90; Vicky paid $13.65.
c = 3.90 * (3 + 1/2) = 3.90 * 7/2 = 27.30/2 = $13.65
Therefore, the equation that represents the total cost, c, Vicky paid for the oranges is:
c = 13.65
The total cost, c, that Vicky paid for the oranges can be calculated by multiplying the weight of the oranges (3 and 1/2 pounds) by the price per pound ($3.90).
Therefore, the correct equation would be c = (3 and 1/2) * $3.90.
Simplifying the equation, we get:
c = (7/2) * $3.90
This further simplifies to:
c = $7 * $3.90 / 2
Final answer:
c = $13.65
Thus, the correct equation is c over 3.5 = 3.90, indicating that Vicky paid $13.65 for the oranges.
To find the total cost, c, Vicky paid for the oranges, we can multiply the amount of oranges she bought (3 and 1 over 2 pounds) by the cost per pound ($3.90).
First, we need to convert the mixed fraction 3 and 1 over 2 to an improper fraction. This can be done by multiplying the whole number (3) by the denominator (2) and adding the numerator (1). The result is 7 over 2.
Now, we can multiply the amount of oranges (7 over 2 pounds) by the cost per pound ($3.90):
c = (7/2) * $3.90
To multiply fractions, we multiply the numerators together and the denominators together:
c = (7 * $3.90) / 2
Multiplying 7 and $3.90 gives us $27.30:
c = $27.30 / 2
Dividing $27.30 by 2 gives us $13.65:
c = $13.65
Therefore, the correct equation representing the total cost, c, Vicky paid for the oranges is:
c over 3.5 = 3.90
In this equation, Vicky paid $13.65 for the oranges and the amount spent is represented by c.