3.7 pounds of meat costs $20.35. what is the price per pound
To find the price per pound, you would divide the total cost by the total weight.
Price per pound = Total cost / Total weight
Price per pound = $20.35 / 3.7 pounds
Price per pound ≈ $5.50
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?
.90c=3.5; Vicky paid $0.90. 3.90 c equals 3.5 ; Vicky paid $0.90. c3.5=3.90; Vicky paid $13.65. Start Fraction c over 3.5 End Fraction equals 3.90 ; Vicky paid $13.65. 3.903.5=c; Vicky paid $13.65. Start Fraction 3.90 over 3.5 End Fraction equals c ; Vicky paid $13.65. c3.90=3.5; Vicky paid $1.11. Start Fraction c over 3.90 End Fraction equals 3.5 ; Vicky paid $1.11.
The correct equation that represents the total cost, c, Vicky paid for the oranges and the amount of money she spent is:
c = 3.5 * 3.90
This equation shows that the total cost (c) is equal to the product of the weight of oranges (3.5 pounds) and the cost per pound ($3.90).
Therefore, Vicky paid $13.65.
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?
n=120; at 8:00 a.m., there were 240 bacteria. 2 n equals 120 ; at 8:00 a.m., there were 240 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. 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.
The correct equation that represents the number of bacteria, n, at 8:00 a.m. is:
n = 120 / 2
This equation shows that the number of bacteria (n) at 8:00 a.m. is equal to the initial number of bacteria (120) divided by the doubling rate (2).
Therefore, at 8:00 a.m., there were 60 bacteria.
A survey is conducted in a certain neighborhood to find out residents’ favorite vacation spot. Two-fifths of the respondents, or 80 residents, said they like spending their vacation at the beach. Which equation represents the number of residents, r , surveyed? How many residents were surveyed?
25r=80; 32 residents were surveyed. Start Fraction 2 over 5 End Fraction r equals 80 ; 32 residents were surveyed. 52r=80; 200 residents were surveyed. Start Fraction 5 over 2 End Fraction r equals 80 ; 200 residents were surveyed. 80r=25; 200 residents were surveyed. 80 r equals Start Fraction 2 over 5 End Fraction ; 200 residents were surveyed. 25r=80; 200 residents were surveyed.
The correct equation that represents the number of residents, r, surveyed is:
(2/5) r = 80
This equation shows that two-fifths of the total number of residents surveyed (r) is equal to 80.
To find the total number of residents surveyed, we need to solve for r:
r = 80 * (5/2)
r = 200
Therefore, 200 residents were surveyed.