Gary has been given the task of purchasing chips and pretzels for a big backyard picnic. He's been given $30 to spend on the snacks. When he gets to the store, he finds that each bag of chips, x, costs about $2 and each bag of pretzels, y, costs about $3.
b) Use whatever method you wish to find 3 possible combinations of bags of chips and pretzels that will cost exactly $30. Even if graphing is not your solution method, explain where these solution points would be found on the graph of the inequality.

Question

Gary has been given the task of purchasing chips and pretzels for a big backyard picnic. He's been given $30 to spend on the snacks. When he gets to the store, he finds that each bag of chips, x, costs about $2 and each bag of pretzels, y, costs about $3. 
b) Use whatever method you wish to find 3 possible combinations of bags of chips and pretzels that will cost exactly $30. Even if graphing is not your solution method, explain where these solution points would be found on the graph of the inequality.

nathan917 · Answer

Well lets just say 3/30 = 10 and 2/30=15. so x=15 and y=10

anonymous · Answer

is that the answer?     x=15 and y =10

nathan917 · Answer

2x + 3y = 30
2x = 30 – 3y
x = (30 – 3y)/2
= 15 – 3y/2
value of y is multiple of 2
if y = 2
x = 15 – (3 × 2)/2 = 15 – 3 = 12

if y = 4
x = 15 – (3 × 4)/2 = 15 – 6 = 9

if y = 6, x = 6
y = 8, x = 3
y = 10 x = 0

here is the whole question.

nathan917 · Answer

http://malaysia.answers.yahoo.com/question/index?qid=20130402054433AADRusd Which you asked