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.
First line because 4(2a+1)=8a+4 and 9a+4-(8a+4)= a
Second line because a times 2 =2a and 2a+1-2a=1
<span>Although the second equality is more or less obvious since 2a+1 leaves a remainder of 1 when divided by a.</span>
Answer:
Tree diagrams display all the possible outcomes of an event. Each branch in a tree diagram represents a possible outcome. Tree diagrams can be used to find the number of possible outcomes and calculate the probability of possible outcomes.
Step-by-step explanation:
so 96 km on 8 liters means if you divide both numbers by 8,
the car goes 12k on 1 liter of gas
now multiply both numbers by 15
180 km on 15 liters
180 km is your answer
Answer:
(10,-2) x=10 y=-2
Step-by-step explanation: I used substitution
