Question

Vicky bought 31/ 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?(1 point) Responses c3.5=3.90; Vicky paid $13.65. Start Fraction c over 3.5 End Fraction equals 3.90 ; Vicky paid $13.65. 3.90c=3.5; Vicky paid $0.90. 3.90 c equals 3.5 ; Vicky paid $0.90. c3.90=3.5; Vicky paid $1.11. Start Fraction c over 3.90 End Fraction equals 3.5 ; Vicky paid $1.11. 3.903.5=c; Vicky paid $13.65.

Answer 1

A culture of a certain bacteria doubles every hour. At 9:00 a.m, there were already 120 bacteria. Which equation represents the number of bacteria, n , at 8:00 a.m? How many bacteria were there?(1 point)

Answer 2

The correct equation represents the total cost, c, that Vicky paid for the oranges and the amount of money she spent is:

c = 3.5 * 3.90

This can be simplified as:

c = 13.65

So, Vicky paid $13.65 for the oranges.

The correct response is "(1 point) Responses c3.5=3.90; Vicky paid $13.65."