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anonymous
 one year ago
The graph shows two lines, A and B.
Part A: How many solutions does the pair of equations for lines A and B have? Explain your answer. (5 points)
Part B: What is the solution to the equations of lines A and B? Explain your answer.
anonymous
 one year ago
The graph shows two lines, A and B. Part A: How many solutions does the pair of equations for lines A and B have? Explain your answer. (5 points) Part B: What is the solution to the equations of lines A and B? Explain your answer.

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campbell_st
 one year ago
Best ResponseYou've already chosen the best response.2for part A how many times do the lines intersect... that is how many solutions exist

TheSmartOne
 one year ago
Best ResponseYou've already chosen the best response.4@Michele_Laino @triciaal @Hero @Australopithecus @pooja195 @iambatman @nincompoop @dan815 @jigglypuff314

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.2part B just read off the point where the lines intersect

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.2so that is part A done... part B what is the point of intersection

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thats where i get confused

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0u go to the right first

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.2ok... so the x value is 1st followed by the y value... what is the x value where the lines intersect

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0if the coordinates were (4, 6) then u would go over 4 and go up 6

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.2I'll let others help you to avoid to many responses at once

TheSmartOne
 one year ago
Best ResponseYou've already chosen the best response.4dw:1437509032911:dw

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0maybe this can help http://www.wikihow.com/GraphPointsontheCoordinatePlane

muscrat123
 one year ago
Best ResponseYou've already chosen the best response.0a coordinate has 2 #s

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2that's right! @Austin.58

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2yes! the ordered pair is requested in part B

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you! Can you please help me with one more

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Mike and his friends bought cheese wafers for $2 per packet and chocolate wafers for $1 per packet at a carnival. They spent a total of $25 to buy a total of 20 packets of wafers of the two varieties. Part A: Write a system of equations that can be solved to find the number of packets of cheese wafers and the number of packets of chocolate wafers that Mike and his friends bought at the carnival. Define the variables used in the equations. (5 points) Part B: How many packets of chocolate wafers and cheese wafers did they buy? Explain how you got the answer and why you selected a particular method to get the answer. (5 points)

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the algebraic system which model your problem is: \[\left\{ \begin{gathered} 2x + y = 25 \hfill \\ x + y = 20 \hfill \\ \end{gathered} \right.\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2where x ia the number of packets of chees wafers, whereas y is the numbers of packets of chocolate wafers

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the first equation takes into account for total cost the second one takes into account for total number of packets of wafer

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2the answer of part A is my system above, with the meaning of the variable x, and y, and the meaning of both equations as I wrote

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so the algebraic system is part a?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2yes! please you have to keep in mind also the meaning of x and y

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay so now moving on to part b?

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2yes! we can solve your system using the elimination method, namely we solve the second equation with respect to the variable y, so we get: \[y = 20  x\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2then I substitute into the first equation, so i can write this: \[2x + 20  x = 25\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2solving taht equation for x, I get: x=5

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2substituting x=5 into the equation for y, I get: y=20x=205=15

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.2so the solution is: x=5, y=15 that is the answer for part B
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