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

Expert answered|KnowledgeGirl|Points 265|

Question

Asked 11/9/2012 9:26:03 AM

0 Answers/Comments

Rating

There are no new answers.

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)

Question

Expert Answered

Asked 11/6/2012 8:14:34 AM

0 Answers/Comments

The ordered pair (0, -2) is a solution to the system of inequalities y is greater than or equal to 3x-6 an y>-4+2 true or false **Weegy:** True, the ordered pair (0, -2) is a solution to the system of inequalities y is greater than or equal to 3x-6 an y>-4+2. **User:** thank you i have a couple more question to ask you im not very good at math an trying to help more son **Weegy:** Weegy can help you as often as you would like. What is your question? (More)

Question

Expert Answered

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

0 Answers/Comments

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?
-2x + 3y = 6
4x – 2y = 8 A.2
B.-2
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?
2x – 3y = -1
3x + 4y = 24 A.4
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
2x - 3y = -16
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)

Question

Expert Answered

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

0 Answers/Comments

Solve the systems using substitution. 3x + 2y = -4
x + 2y = -8 **Weegy:** x=2 , y=-5 (More)

Question

Expert Answered

Asked 11/6/2012 8:33:58 AM

0 Answers/Comments

Solve the systems using substitution.
1.6x + 2y = 0
4x + y = -1
**Weegy:** x=-5/16; y=1/4 (More)

Question

Expert Answered

Asked 11/6/2012 8:24:43 AM

0 Answers/Comments

23,889,563 questions answered

There are no comments.