Y is usage so set y to 0 and solve for x
y = -10x+100
0 = -10x +100
subtract 100 from each side:
-100 = -10x
divide both sides by -10
x = -100 / -10
x = 10 hours
Answer:
Complimentary
Step-by-step explanation:
Complimentary is what you call two angles who’s measures add up to 90 degrees
supplementary is when they add up to 180 degrees
vsrtical is when they are across from each other created by two intersecting lines and have an equal angle measure
Answer:
y>1/2x+2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
4x-6
Answer: 20 students each year
Step-by-step explanation:
60+20= 80
80-60=20
you can do 80 minus 60 and get 20
then to double check you can add 60 and 20