PLEASE ANSWER a mixture of purple paint contains 12 teaspoons of red paint and 15 teaspoons of blue paint. use a double numberline to show how much red paint you would need to make the same shade of purple if you have already used 25 teaspoons of blue paint

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/rzNrBcz

your answer would be 12

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