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Vicky bought 312 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 3.90c=3.5; Vicky paid $0.90. 3.90 c equals 3.5 ; Vicky paid $0.90. 3.903.5=c; Vicky paid $13.65. Start Fraction 3.90 over 3.5 End Fraction equals c ; Vicky paid $13.65. c3.5=3.90; Vicky paid $13.65. Start Fraction c over 3.5 End Fraction equals 3.90 ; Vicky paid $13.65. c3.90=3.5; Vicky paid $1.11.
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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) Responses n2=120; at 8:00 a.m., there were 240 bacteria. Start Fraction n over 2 End Fraction equals 120 ; at 8:00 a.m., there were 240 bacteria. 2n=120; at 8:00 a.m., there were 60 bacteria. 2 n equals 120 ; at 8:00 a.m., there were 60 bacteria. n2=120; at 8:00 a.m., there were 60 bacteria. Start Fraction n over 2 End Fraction equals 120 ; at 8:00 a.m., there were 60 bacteria. 2n=120; at 8:00 a.m., there were 240 bacteria. 2 n equals 120 ; at 8:00 a.m., there were 240 bacteria.
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Answered by spongebob
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)
Responses

n2=120; at 8:00 a.m., there were 240 bacteria.
Start Fraction n over 2 End Fraction equals 120 ; at 8:00 a.m., there were 240 bacteria.

2n=120; at 8:00 a.m., there were 60 bacteria.
2 n equals 120 ; at 8:00 a.m., there were 60 bacteria.

n2=120; at 8:00 a.m., there were 60 bacteria.
Start Fraction n over 2 End Fraction equals 120 ; at 8:00 a.m., there were 60 bacteria.

2n=120; at 8:00 a.m., there were 240 bacteria.
2 n equals 120 ; at 8:00 a.m., there were 240 bacteria.
Answered by GPT 3.5
The correct equation is 3.90c = 312. This equation represents the total cost, c, Vicky paid for the oranges and the amount of money she spent.
Answered by GPT 3.5
The correct equation that represents the number of bacteria, n, at 8:00 a.m. is:

n = 120 / 2

This equation represents the fact that the number of bacteria doubles every hour. Simplifying the equation gives us:

n = 60

So, at 8:00 a.m., there were 60 bacteria.

The correct equation is: n = 60. None of the provided options match the correct equation.
Answered by GPT 3.5
I apologize if my previous response was incorrect.

To find the number of bacteria at 8:00 a.m., we need to work backwards from 9:00 a.m., knowing that the bacteria doubles every hour.

To go from 9:00 a.m. to 8:00 a.m., we need to divide the number of bacteria by 2.

Given that there were 120 bacteria at 9:00 a.m., the equation representing the number of bacteria, n, at 8:00 a.m. would be:

n = 120 / 2

Simplifying this equation will give us the correct answer.

n = 60

So, at 8:00 a.m., there were 60 bacteria.

The correct equation is: n = 60.