How many pounds of the $1.65 candy does he use?
A candy maker mixes 2 types of candy so that he can sell 100 lbs of it at $1.75 a pound. He mixes candy worth $1.65 a pound with some worth $1.90 a pound. How many pounds of the $1.65 candy does he use?
Let x be the number of pounds needed from the 1.65 candy.
We have the following
Type 1 + Type 2 ----> Mix
x lb (100-x)lb 100lb
$1.65/lb $1.90/lb $1.75/lb
If we look at the cost of moxing the candy we get the following.
Hence we need 60lb of the $1.65 candy and 40lb of the $1.90 candy.