Answer:
This system of equations was solved the Reduction Method:
Step 1: Multiply the equations by the appropriate numbers (The first equation was multiplied by 5 and the other one bye 7), so that one of the variables disappears by subtracting both equations.
Step 2: The equations were algebraically added and one of the variables disappeared (Resulting in 31a= 217).
Step 3: The variable "a" was cleared to know its value (a= 217/31= 7).
Step 4: The value "a" obtained is substituted in one of the previous equations.
Step 5: Multiply the 2 (coefficient of "a" in the first equation) by the value "a" obtained (2x7= 14).
Step 6: The independent term "14" is passed to the right member and his sign changes to negative (-14)
The final step is to clear variable "b" to know its value (b= -17/4= -2).
Step-by-step explanation:
Simple eqations are usually 1 step eqations and you could also just do them in your head. for example
3y = 15
y = 5 because 5*3 = 15
Answer:
24.5/25
Step-by-step explanation:
49/50 divided by 2 is 24.5/25
May not be correct but that's what I got
So I'd say 1%
<h3>
Answer: 0.1319</h3>
==========================================
Work Shown:
Side note: you can use the nCr formula to compute 
; however, it's much quicker to use the shortcut formula 
. You can also use Pascal's Triangle to find the value of
