Question 4 of 20 5.0 Points What is the solution of the system? Use substitution. y = x + 6 y = 2x A. (6, 12) B. (–12, –6) C. (–6, –12) D. (2, 4)
Question
Updated 7/10/2014 1:06:09 AM
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User: Question 4 of 20 5.0 Points What is the solution of the system? Use substitution. y = x + 6 y = 2x A. (6, 12) B. (–12, –6) C. (–6, –12) D. (2, 4)

Weegy: d
bankai123|Points 0|

User: Question 5 of 20 5.0 Points How many solutions does the system have? x = -4y + 4 2x + 8y = 8 A. one solution B. two solutions C. infinitely many solutions D. no solution

Weegy: The answer is D. no solution
alfred123|Points 10754|

User: Question 8 of 20 5.0 Points The school cafeteria sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs \$1.00 and the chicken wrap costs \$1.80. Today they made \$98.80 from the 70 wraps sold. How many of the wraps sold were vegetarian? A. 36 wraps B. 37 wraps C. 30 wraps D. 34 wraps

Weegy: The answer is 34 vegetarian wraps sold. [ v = vegetarian wrap c = chicken wrap v + c = 70 c = 70 - v v(\$1) + c(\$1.8) = \$98.80 1v + 1.8c = 98.8 10v + 18c = 988 10v + 18(70 - v) =988 10v + 1260 - 18v = 988 -8v = -272 v = 34 ]
jher000|Points 8066|

User: Question 9 of 20 5.0 Points What is the solution of the system? Use substitution. x = –2y + 10 –6y = 6x – 6 z = –3x + 10y A. x = 9, y = –8, z = 114 B. x = –8, y = 9, z = 114 C. x = –8, y = 114, z = 9 D. x = 114, y = 9, z = –8

Weegy: A. x = 9, y = 8, z = 114 is the answer.

User: Question 11 of 20 5.0 Points What is the solution of the system? Use elimination. 3x – 4y = 9 –3x + 2y = 9 A. (3, 9) B. (–27, –9) C. (–3, –6) D. (–9, –9)

Weegy: D. ( 9, 9)
selymi|Points 13915|

User: Question 12 of 20 5.0 Points The local zoo has two water tanks for the elephant exhibit that are leaking One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. A. In 2 hours, because the solution to the system is (2,18). B. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have time be –2 hours. C. In –2 hours, because the solution to the system is (–2,18). D. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have –2 gallons in the tanks.

Weegy: B. They will never have the same amount of water because the solution to the system is ( 2,18). It is not possible to have time be 2 hours.
louispayne|Points 100|

User: Question 15 of 20 5.0 Points What is the solution of the system? Use a graph. y = –3x + 2 y = –3x + 4 A. no solutions B. (0, 2) C. infinitely many solutions D.

Weegy: the solution of the system has actually C. infinitely many solutions.

User: Question 16 of 20 5.0 Points The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 34 gal of water and is filled at a constant rate of 4 gal/h. The second water tank contains 30 gal of water and is filled at a constant rate of 2 gal/h. Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. What are the constraints on the system? A. both x0, y0 B. x0 only C. y0 only D. There are no constraints on the system.

Question
Updated 7/10/2014 1:06:09 AM
This conversation has been flagged as incorrect.
Rating
3
y = x + 6
y = 2x
substitute y in the first equation:
2x = x + 6
2x - x = 6
x = 6,
y = 2(6) = 12
The solution for the system y = x + 6 y = 2x is (6, 12)
Confirmed by jeifunk [7/10/2014 1:24:33 AM]
3
x = -4y + 4
2x + 8y = 8
substitute x in the second equation:
2(-4y + 4) + 8y = 8
-8y + 8 + 8y = 8
-8y + 8y = 8 - 8
0 = 0
There are infinitely many solutions for the system x = -4y + 4 2x + 8y = 8
Confirmed by jeifunk [7/10/2014 1:24:58 AM]
3
3x – 4y = 9
–3x + 2y = 9
adding up equations the result is:
-2y = 18
y = -9
3x - 4(-9) = 9
3x + 36 = 9
3x = 9 - 36 = -27
x = -9
The solution set for the system 3x – 4y = 9 –3x + 2y = 9 is (-9, -9)
Confirmed by jeifunk [7/10/2014 1:25:33 AM]
3
There are no solution for the system y = –3x + 2 y = –3x + 4 since the two lines have the same slope and are parallel to each other.
Confirmed by jeifunk [7/10/2014 1:25:47 AM]

Questions asked by the same visitor
Question 1 of 20 5.0 Points Combine like terms. (-3y2 - 7y - 9) - (4y2 + 6y + 9) A. y2 - y B. -9y2 - 11y - 18 C. 7y2 13y 18 D. -7y2 - 13y - 18
Weegy: (-3y2 - 7y - 9) - (4y2 + 6y + 9) = -7y2 - 13y - 18 User: Question 2 of 20 5.0 Points Name the binomial you can multiply by (x + 9) to get the product x2 + 5x - 36. A. 4 - x B. x + 6 C. x - 4 D. x - 6 Weegy: x - 4 is the binomial you can multiply by (x + 9) to get the product x2 + 5x - 36. User: Question 4 of 20 5.0 Points Simplify the product. (x - 4)(x + 3) A. x2 - 7x - 12 B. x2 + x - 12 C. x2 - x - 12 D. x2 - 12x - 1 Weegy: (x - 4)(x + 3) = x^2 - x - 12 User: Question 6 of 20 5.0 Points Suppose you mark n points on a circle, where n is a whole number greater than 1. The number of segments you can draw that connect these points is . How many segments can you draw if you mark 8 points on the circle? A. 56 segments B. 32 segments C. 60 segments D. 28 segments (More)
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Updated 7/10/2014 1:12:48 AM
Monomial
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Updated 3/31/2014 12:41:38 PM
Question 6 of 20 5.0 Points Below are the graphs of y = | x | and y = | x | - 9 . How are the graphs related? A. The graphs have the same shape. The y-intercept of y = | x | is 0 and the x-intercept of the second graph is –9. B. The graphs have the same y-intercept. The second graph is steeper than y = | x | . C. The two graphs are the same. D. The graphs have the same shape. The y-intercept of y = | x | is 0 and the y-intercept of the second graph is –
Weegy: We are not capable of viewing graphs here in weegy. User: Question 7 of 20 5.0 Points The table shows the height of a plant as it grows. What equation in point-slope form gives the plant’s height at any time? Let y stand for the height of the plant in cm and let x stand for the time in months. Time (months) Plant Height (cm) 3 15 5 25 7 35 9 45 A. y – 15 = (x – 3) B. y – 15 = 5(x – 3) C. y – 3 = (x – 15) D. The relationship cannot be modeled. Weegy: B. y ? 15 = 5(x ? 3) User: Question 8 of 20 5.0 Points Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2? A. y = –0.75x; 1.50 B. y = –1.33x; 2.67 C. y = 1.33x; –2.67 D. y = 0.13x; –0.25 Weegy: The answer is B. y = 1.33x; 2.67 User: Question 9 of 20 5.0 Points The scatter plot shows the number of mistakes a piano student makes during a recital versus the amount of time the student practiced for the recital. How many mistakes do you expect the student to make at the recital after 6 hours of practicing? A. 55 mistakes B. 37 mistakes C. 63 mistakes D. 45 mistakes Weegy: A. 55 mistakes User: Question 11 of 20 5.0 Points Write an equation of a line with the given slope and y-intercept. m = –5, b = –3 A. y = –5x – 3 B. y = –5x + 3 C. y = 5x – 3 D. y = –3x – 5 Weegy: -2 is the y-intercept for the equation: y = 5x ? 2 User: Question 12 of 20 5.0 Points Write an equation in point-slope form for the line through the given point with the given slope. (8, 3); m = 6 A. y + 3 = 6(x - 8) B. y - 3 = 6(x - 8) C. y - 3 = 6(x + 8) D. y + 3 = 6x + 8 Weegy: b User: Question 13 of 20 5.0 Points What are the slope and y-intercept of the graph of the given equation? y = –4x + 2 A. The slope is –2 and the y-intercept is –4. B. The slope is 2 and ... (More)
Question
Updated 11/21/2014 1:39:47 AM
Write an equation of a line with the given slope and y-intercept : m = –5, b = –3 is y = -5x - 3 .
Confirmed by jeifunk [11/21/2014 2:11:03 AM]
The slope and y-intercept of the graph of the given equation of y = –4x + 2 is: The slope is -4 and the y-intercept is 2 .
Confirmed by jeifunk [11/21/2014 2:16:31 AM]
The slope of the line that passes through the pair of points: (1, 7), (10, 1) is -2/3.
Slope = (1 - 7)/(10 - 1 = -6/9 = -2/3 .
Confirmed by jeifunk [11/21/2014 2:33:08 AM]
Write y = x + 5 in standard form using integers is x - y = -5.
Confirmed by jeifunk [11/21/2014 2:23:55 AM]
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y = x - 2 + 16
y = x + 14 is the equation .
Confirmed by jeifunk [11/21/2014 2:24:13 AM]
Question 14 of 20 5.0 Points What is the slope of the line that passes through the pair of points? (1, 7), (10, 1) A. 3/2 B. -2/3 C. -3/2 D. 2/3
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Question
Updated 3/31/2014 10:08:51 PM
The slope of the line that passes through the pair of points (1, 7), (10, 1) is B. -2/3
Confirmed by jeifunk [3/31/2014 10:07:08 PM]
The slope and y-intercept of the graph of the given equation y = –4x + 2 is D. The slope is –4 and the y-intercept is 2.
Confirmed by jeifunk [3/31/2014 10:07:08 PM]
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Confirmed by jeifunk [3/31/2014 10:07:09 PM]
Suppose the factory can produce 455 sofas in 48 hours. Then it can produce 455/48 = 9.48 sofas per hour. The equation that relates the number of sofas produced, n, with the amount of time, t, in hours is: A. n = 9.48t
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12000 + 5x = 15x where x is the number of yearbooks must they sell before their business breaks even.
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