4c + 5h = 650 and
5c + 6h = 800 where c are chefs, h are helpers
Start by finding an expression for c
4c + 5h = 650
4c = 650 -5h
c = (650- 5h)/4
Then substitute that into the second equation and solve for a number value for h
5 (650-5h)/4 + 6h = 800
(3250-25h)/4 + 6h = 800
Multiply both sides by 4
3250-25h + 24h = 3200
-h = -50
h = 50
Take that 50 and substitute it into the expression we have for c to get a number value for c
C= 650-5(50)/4
C = 650-250/4
C = 400/4
C= 100
Check your first equations, substituting $50 for the helpers and $100 for the chefs.
4 (100) + 5(50) =
400 + 250 = 650
5(100) + 6(50) =
500 + 300 = 800
1. Note that
2. Then the equation 
can be rewritten
3. Solve it:
Answer: x=6
Answer:
x = - 4
Step-by-step explanation:
-3(x+2)=6+2x+8
-3x - 6 = 14 + 2x (-3 * 2 = -6)
-3x -2x = 14 + 6
-5x = 20
x = 20/ -5
x = -4
Answer: -6250
Step-by-step explanation: The common ratio is -5. By multiplying the terms by this ratio, the sixth term is -6250.
The answer that you are looking for is B. 1/4.
