Question

How many pounds of chocolate worth $1.5 a pound must be mixed with 10 pounds of chocolate worth 60 cents a pound to produce a mixture worth $1 a pound?

Answer 1

`8\ pounds`

Explanation:

Let

x-----> amount of pounds of chocolate worth $1.5

we know that

`1.5x+0.60(10)=1(x+10)`

`1.5x+6=x+10`

`1.5x-x=10-6`

`0.5x=4`

`x=8\ pounds`