Answer:
Simplify both of them
Step-by-step explanation:
Answer:
Step-by-step explanation:
From the problem statement, we can setup the following equations:


where
is the current age of Shobos and
is the current age of his mother.
Substituting the first equation into the second will allow us to solve for
:




Substituting this value into the first equation gives us the age of the mother:



Answer:
≤ − 8
Step-by-step explanation:
-1 ≤
-3
4 ×(-1) ≤ 4 ×
-4×3
-4 × (-1) ≤ -x - 4×3
-4 ≤ -x - 12
x ≤ -12 + 4
x ≤ -8
defective : working = 1/15 ( x20 ) 20/300
so the answer is 20 light bulbs