S = 25 + 2f
s + f = 310
substitute s = 25 + 2f into the second equation
25 + 2f + f = 310
3f + 25 = 310
subtract 25 from both sides
3f = 285
divide both sides by 3
f = 95
faculty = 95
students = 310 - 95 = 215
Answer:
D.
Step-by-step explanation:
The x-axis of the graph isn't constant with the years. It cannot be consistent if the first twenty years are scaled together and the last 10 are put in increments of 2 years.
D. (5,-4)
you can eliminate the 5x and -5x because they are opposites
Then you add the two equations together
you get -9y = 36
solve for y and you get -4
plug -4 into one of the original equations
Ex. 5x+3 (-4)=13
Solve for x
you get 5x = 25
then you finish solving and get x=5
If two planes intersect there’s alway going to be an intersection point where the two cross over
170 divided by 39.37= 4.32 meter