You buy 3 bags of sand and 2 bags of pea gravel for $21. In a second purchase (at the same prices), you buy 2 bags of sand for $
10. Let represent the price (in dollars) per bag of sand and let y represent the price (in dollars) per bag of pea gravel. Use a graph to find the price per bag of sand and the price per bag of pea gravel. What is thE bag of sand cost and bad of pea gravel cost.
1/x+1/a=1/a minus 1/a from both sides 1/x=0 false let's try a differnt way 1/x+1/a=1/a times both sides by xa a+x=x minus x from both sides a=0 ??? 1/0 is undefined this creates problems
