Imran makes lemonade by mixing lemon juice, sugar and water in the ratio 8: 3:13. He wants to make litres of lemonade. How much of each ingredient does he need?

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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