Answer:
0.42 or 21/50
Step-by-step explanation:
2/100=0.02 or 1/50
4/10=0.4 or 2/5
0.4+0.02=0.42
1/50+2/5=21/50
To find the difference you would need to make the denominator equal so I changed it to 15 and the difference would be 7/15
Answer:
x = 42
Step-by-step explanation:
166 + 93 + 127 + 112=498
5-2=3
180 x 3=540
540-498=42
Option a:
is the solution to the system of equations.
Explanation:
The equations are
and 
Equating these two equations, we have,

Taking LCM and multiplying both sides by 5, we get,

Simplifying , we get,

Substituting the value of x in
, we get,

Thus, the solution is 
Changing the solution from fraction to decimal, we get, 
Thus, the solution is 
Hence, option a is the correct answer.
Answer:
Step-by-step explanation:
4x(4+3)
Distrubute the 4x
16x+12x
Add the common variables
Yoy get 28x