Arabica coffee costs $0.5 per ounce while Robusta coffee costs $0.4 per ounce. If the blend of Arabica and Robusta costs $0.44 per ounce, what is the share of Arabica in this blend?  Choose the correct choice from the following choices.
A) 20%	B) 24%	C) 30%	D) 33%	E) 40%
a= amount of arabica coffee   1-a = amount of robusta coffee. because if you subtract a from the 1 ounce, the remaining amount is robusta   therefore:   .5a + .4(1-a) = .44   .5a + .4 - .4a = .44   a= .4   therefore: .4/1 ounce = 40%. Therefore, the answer should be 40%
<result>E</result>
Arabica coffee costs $0.5 per ounce while Robusta coffee costs $0.4 per ounce. If the blend of Arabica and Robusta costs $0.44 per ounce, what is the share of Arabica in this blend?