At the rate of 15 per 6 oz. bar of chocolate, how much would a pound

40

Step-by-step explanation:

We know there are 16 oz in a pound

We can use ratios

15             x

 =

6 oz       16 oz

Using cross products

15 * 16 = 6x

240 = 6x

divide by 6

240/6 = 6x/6

40 =x

i’m here for points.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,