Answer:
750 students
Step-by-step explanation:
30/40 = 75%
75% of 1000
= 750
We need the following to be true
a+2b = -a
a+4 = 2a - 3b
Let's look at the first equation.
a + 2b = -a
Subtract both sides by a
2b = -2a
b = -a
Substitute b= -a into the second equation
a+4 = 2a + 3a
a + 4 = 5a
4a = 4
a = 1
Just take the negative of that and you get the value of b.
b = -1
Your solution is a=1 and b = -1.
Have an awesome day! :)
C loser that’s the correct number
C d e are correct...hope this helps
Answer:
It would be
-2+7x
Step-by-step explanation: