A grocer mixes trail that costs 3.00 dollars per pound and trail mix that costs 1.50 per pound. He make 15 lbs of trail mix that costs 2.50 per pound. How much of each trail mix did he use?

Step-by-step explanation:

The Grocer used 7.5 pounds of each

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c