Pleaseeeeee help
Ben wishes to blend candy selling for $1.60 a pound with candy selling for $2.50 a pound to get a mixture that will be sold for 1.90 a pound. How many pounds of the $1.60 and the $2.50 candy should be used to get 30 pounds of the mixture?

Question

Pleaseeeeee help 
Ben wishes to blend candy selling for $1.60 a pound with candy selling for $2.50 a pound to get a mixture that will be sold for 1.90 a pound. How many pounds of the $1.60 and the $2.50 candy should be used to get 30 pounds of the mixture?

anonymous · Answer

put $x$ as the number of pounds of $2.50 candy, then since the total pounds is 30, the number of pounds of $1.60 candy is $30-x$

the total cost will be 
$$2.50x+1.60(30-x)$$ which you want to be $1.90\times 30=57$ so set them equal 
$$2.50x+1.60(30-x)=57$$ and solve for $x$

anonymous · Answer

probably easier to multiply by 10 and solve 
$$25x+16(30-x)=570$$