A plane flew 1,740 km in 6 hours with a tail wind. On the return trip, going into the wind, the plane flew 570 km in 3 hours. What is the plane's speed if there was no wind? What is the speed of the

wind? Write the system of equations that would be used to solve this problem. A.(r + w)6 = 1740
(r – w)3 = 570
B.(r – w)6 = 1740
(r + w)3 = 570
C.(r + w)3 = 1740
(r – w)6 = 570
D.(r – w)3 = 1740
(r + w)6 = 570

C.(r + w)3 = 1740

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The ordered pair (0, 3) is a solution to the system of inequalities, 2x-y-1 ture or false **Weegy:** True. The ordered pair (0, 3) is a solution to the system of inequalities, 2x-y -1 (More)

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Asked 11/6/2012 8:07:11 AM

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When solving the system by substitution, what would you plug into the second equation for the letter x?
x+2y=4
2x+2y=6 A.x = 2
B.x = 4-2y
C.x = 4
D.x = 2y+4
**Weegy:** A.x = 2 **User:** thanks :) **Weegy:** You are very welcome! Is there anything else we can help you with? **User:** If you were to solve the system using the addition method, what would you multiply the first equation by in order to make the x's add out of this system?
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C.4
D.none of the above
**Weegy:** B.-2 **User:** thanks again sorry im very horrible at math an am trying to help my son in math **Weegy:** Its my pleasure to help you with these questions. If you have more please just go ahead. **User:** Solve using the addition method. What is the y-value of the solution to the system?
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B.3
C.2
D.none of the above
**Weegy:** B.3 **User:** an one more question an i think im done.....The perimeter of a rectangle is 34 inches. The length is 4 less than twice the width. What is the length of the rectangle. Write a system of equations for this problem. Which one of the equations below would be part of that system?
a.2L + 2W = 4
b.2L + 2W = 30
c.L = 2W -4
d.L = 4W – 2 **Weegy:** c.L = 2W -4 **User:** thanks soo much i appreciate this :) **Weegy:** you are welcome. more questions? **User:** A. x - 4y = -8
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B. x - y = -2
3x - y = 0
C. x + y = -4
-3x + 2y = 2
D. 4x + 6y = -12
2x + 3y = 9
E. x + y = -1
4x + 4y = -4
1. Which system has (-8, 0) as the solution?
2. Which system has (-2, -2) as the solution?
3. Which system has no solutions?
4. Which system has (1, 3) as the solution?
5. Which system has infinite solutions?
**Weegy:** 1. A. x - 4y = -8 2x - 3y = -16 has (-8, 0) as the solution.
2. C. x + y = -4 -3x + 2y = 2 has (-2, -2) as the solution.
3. D. 4x + 6y = -12 2x + 3y = 9 has no solutions.
4. B. x - y = -2 3x - y = 0 has (1, 3) as the solution.
5. E. [ x + y = -1 4x + 4y = -4 has infinite solutions. ] **User:** omg your a life saver lol **Weegy:** Thanks. I like to solve such questions. Do you have more for me? **User:** The ordered pair (3, -2) is a solution to ... (More)

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Asked 11/6/2012 7:28:04 AM

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Solve the systems using substitution. 3x + 2y = -4
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Asked 11/6/2012 8:33:58 AM

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Solve the systems using substitution.
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Asked 11/6/2012 8:24:43 AM

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