Answer:
The answer is 20 hours
Step-by-step explanation:
20x60=1200
1200÷60=20
Answer:
I think its A
Step-by-step explanation:
By definition, the area of a rectangle is:

Where,
w: width of the rectangle
l: length of the rectangle
The total area is given by:

Where,
A1: rectangular wooden board 1
A2: rectangular wooden board 2
Substituting we have:

Rewriting we have:




Answer:
The width is given by:
