Answer:
I think it's B.
Step-by-step explanation:
Hope this helps. :)
Let x represent the number of pounds of $10.75/lb coffee used in the mix.
.. 10.75x +3.25(100 -x) = 5.65*100 . . . . . . total cost of coffee blend
.. x(10.75 -3.25) = 100*(5.65 -3.25) . . . . . .separate x-terms from non-x terms
.. x = 240/7.5 = 32
32 pounds of $10.75/lb coffee should be used
68 pounds of $3.25/lb coffee should be used
Slope is rise over run. Go up 1 unit, right 4 units to get to the next point.
the slope is 1/4
180/3x then you get you answer