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anonymous
 5 years ago
Hello, I need help with an equation
i did it, but it looks like it needs revision
• A teacher is looking for the best option in purchasing school supplies for a classroom. Company A is offering a discount for every dollar amount spent; Company B is offering a higher discount than Company A, but the discount is applicable only for every dollar amount spent above $20. Determine which company will offer a better price based upon the dollar amount the teacher spends on school supplies.
anonymous
 5 years ago
Hello, I need help with an equation i did it, but it looks like it needs revision • A teacher is looking for the best option in purchasing school supplies for a classroom. Company A is offering a discount for every dollar amount spent; Company B is offering a higher discount than Company A, but the discount is applicable only for every dollar amount spent above $20. Determine which company will offer a better price based upon the dollar amount the teacher spends on school supplies.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0do you have a formula for determining the cost of each company? If you don't, develop a formula for each company, and then I can help you from there

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes i do there are three separate formulas y=0.8x y=0.7x+6 and y=x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I am having trouble with the excel graph, and i don't know if something is just not adding up

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm not sure what those equations correspond to

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0well, the discounts are 20% from Company A based on any amount purchased, and 30% from Company B for supplies purchased above $20.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok, so when for the second one, when x is 20, y is twenty, and afterwards y = (x 20) * .7

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sorry, y = (x  20) * .7 + 20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes but how do I put it in a graph? how do I find my points for those 3 equations? I attached an excel graph, but something isn't accurate

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0sorry, i can't open up the excel graph. but to solve the problem, you solve for the two equations i posted above

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0did you use scatter plot instead of line graph?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0go to where you change chart type, and choose the segmented line, instead of the smooth curve under scatter plot

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in the scatter chart?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Can I put any numbers to solve the equation, or how would I solve this equations above?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you see how two of the equations intersect on the graph?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, at 60, but at the bottom, i have a bump

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0these are the points that I use, 0, 20,40, 60,80

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0at x = 20, it will be discontinuous. it's supposed to be

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0x1 y1 x2 y2 0 0 0 0 20 16 20 20 40 32 30 27 60 48 40 34 80 64 60 48

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i think something is wrong with the points that I'm using

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0use the equations i gave then

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Are they the same as y=0.8x and 0.7x+6? Or can you regive me your equations if they are different?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0why is it six and not 34? from 0  20, the equations should be y = .8 * x and y = x, after 20, it should be y = .8 x and y = .7 * x + 34

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you know what, nevermind, the equation is right, i added 14 + 20 instead of subtracted

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so your equations are correct

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Whew, a relief since I have been working on them since yesterday. But my question is, what points do I use to plot the graph? How do I solve the equations?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0I'm like math illiterate, which is probably why you're wondering why I'm having a hard time with these equations.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0your points are correct, it shows exactly where the two graphs are equal. the only problem is, you chose to have the graph smooth the lines, instead of jagged. make them jagged

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you see where it's curvy? it should just be an angle

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0how do I make them jagged? and do I need to do a point for the equation y=x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no, read up top, you need to change the graph type

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0look in excel where it has the types, where one is curved, and the other is jaggedy

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So you can see my graph in front of you, does it make sense to you with both companies?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes, it's fine, except that it's curved, and not jaggedy

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0in my excel, if i right click on the graph, and go to CHANGE CHART TYPE, i have the option on the bottom of the window to change it to a jagged scatter plot. other than that, it's supposed to have them cross like that, and the one is supposed to slightly change direction

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Ok and how do I simultaneously solve those 3 equations?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you don't simultaneously solve all three

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0only the two, after x > 20

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok and how do I solve those 2? I'm sorry if I sound clueless, but I just don't understand math

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you see how you have them already solved for y? you just set the right side of the one to the right side of the other, as in .8x = .7x+6, and solve for x

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Would I be able to attach the file for the word problem so you can see if I did it right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no, you did that right, but your answer doesn't match your data

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0wait, is that your x or your y? your x is 60, and your y is 48?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0So the equations with the graph are accurate?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0This is what it asks for?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.03. Solve the system of linear equations algebraically using either the substitution method or the elimination method to determine where the two cost options are equivalent, showing all work. a. Explain each step used to solve the system of linear equations. Include the following in your explanation: • The algebraic method used to solve the system of equations • All mathematical operations used to solve the system of equations • The solution of the system of equations

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Which method did I use?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0How did you come up with all three equations?
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