## Need help with this problem

Simplificatation, evaluation, linear equations, linear graphs, linear inequalities, basic word problems, etc.
teenpunk
Posts: 1
Joined: Wed Mar 30, 2016 2:14 am
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### Need help with this problem

I haven't been able to figure this out, and I haven't started on it either.

"The Amazon website plans to purchase ads in a local newspaper advertising their site. Their operating budget will allow them to spend at most \$2200 on this advertising adventure. They plan to run at most 20 ads. An ad will cost \$50 to appear in the weekday paper and \$200 to appear in a weekend edition. Prepare a graph that will represent all of the possible combinations of ads under these conditions."

little_dragon
Posts: 226
Joined: Mon Dec 08, 2008 5:18 pm
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### Re: Need help with this problem

The Amazon website plans to purchase ads in a local newspaper advertising their site. Their operating budget will allow them to spend at most \$2200 on this advertising adventure. They plan to run at most 20 ads. An ad will cost \$50 to appear in the weekday paper and \$200 to appear in a weekend edition. Prepare a graph that will represent all of the possible combinations of ads under these conditions.
pick a variable for one of the ad types: http://www.purplemath.com/modules/variable.htm
say "d" for week"day"
then do an expression for how much is left for the other type: http://www.purplemath.com/modules/translat2.htm
multiply each type by its cost
add to get the whole cost
set equal to the max they gave you
solve: http://www.purplemath.com/modules/solvelin.htm
then back-solve for the other amount
to graph, set the whole-cost expression equal to y (and replace "d" with "x" if that helps you): http://www.purplemath.com/modules/graphlin.htm
thnx