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 spends?
The total cost can be found by multiplying the weight of the oranges by the cost per pound.
Let's convert 3 1/2 pounds to a mixed number or fraction.
3 pounds is equal to 3*3.90 dollars.
1/2 pound is equal to 1/2 * 3.90 dollars.
So the total cost, c, is 3*3.90 + 1/2*3.90 dollars.
We can simplify this equation by adding the fractions together:
c = 11.70 + 1.95.
So, the equation that represents the total cost, c, Vicky paid for the oranges is c = 13.65.
To find the total cost of the oranges, we can multiply the weight in pounds by the cost per pound.
The weight of the oranges is 3 1/2 pounds, which can be expressed as 3.5 pounds.
The cost per pound is $3.90.
To find the total cost, we multiply the weight by the cost per pound:
Total cost = (weight in pounds) x (cost per pound)
c = 3.5 x $3.90
Therefore, the equation that represents the total cost, c, Vicky paid for the oranges is:
c = 3.5 * $3.90
To find the total cost, c, Vicky paid for the oranges, we need to multiply the weight of the oranges by the cost per pound.
First, let's convert 3 1/2 pounds to a decimal form.
To do this, we multiply the whole number (3) by the denominator (2) and add the result to the numerator (1).
3 * 2 + 1 = 6 + 1 = 7
Therefore, 3 1/2 pounds can be represented as 7/2 pounds.
Next, we multiply the weight of the oranges (7/2 pounds) by the cost per pound ($3.90).
The equation for the total cost, c, can be written as:
c = (7/2) * $3.90
To simplify this equation, we can first multiply the fractions, then multiply the result by $3.90:
c = (7/2) * $3.90
c = (7 * $3.90) / 2
c = $27.30 / 2
c = $13.65
So, the total cost, c, Vicky paid for the oranges is $13.65.
Therefore, the correct equation is:
c = $13.65