The probablility is 4.89%
2.8 - 0.6(x + 2) = 2x + 2(x - 0.2)...distribute thru the parenthesis
2.8 - 0.6x - 1.2 = 2x + 2x - 0.4.....simplify
1.6 - 0.6x = 4x - 0.4....add 0.6x to both sides, add 0.4 to both sides
1.6 + 0.4 = 4x + 0.6x ..simplify
2 = 4.6x...divide both sides by 4.6
2 / 4.6 = x...simplify
0.43 = x...(thats rounded, and we need it as a fraction....so it is :
43/100 <==
Answer:
-5.1
Step-by-step explanation:
Subtract 5.1 from both sides.
72-54 =2a
A=9
A+54= 3a+b
63=3a+b
63= 3(9) +B
B=36
A+B =C
9+36=45
C=45
A+2C=4a+2D
9+ 2(45) = 4(9) + 2D
63=2D
D=31.5
A+D=F
9+31.5=F
F= 40.5
B is your answer it gotta be