Once a week, Dianne spends 5 hours making windchimes. It takes her 30 minutes to make a small windchime and 40 minutes to make a large windchime. This week, Dianne will make twice as many small windchimes as large windchimes. How many of the small windchimes will Dianna make this week?

phosphate, calcium ion, chloride ion, neon atom

step-by-step explanation:

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