Number of students selected from University A:
f(x)=4x+5
Number of students selected from University B:
g(x)=2x+8
So total number of students selected from both universities:
h(x)= f(x)+g(x)
Put values
h(x)=4x+5+2x+8
h(x)=6x+13
Option D is correct.
Answer:
they each get 8/10 of the pizza, equal to 4/5 simplified
Answer:
720 kph
Step-by-step explanation:
The ratio of times is ...
new time/original time = (1 2/3 h)/(5 h) = (5/3 h)/5 h) = 1/3
For the same distance, the ratio of speeds must be the inverse of this:
new speed/original speed = s/240 = 1/(1/3) = 3
s = 240(3) = 720 . . . . km/h
The aeroplane must travel at a speed of 720 km/h.
-4(-1.5 - 9)
-4 x -1.5 = 6
-4 x 9 = -36
Answer is -30
