Answer:
2 hours
Step-by-step explanation:
first tap= 3hours
therefore work done is = 1/3
second tap= 6hours
therefore work done = 1/6
so, 1/3+ 1/6
=2/6 + 1/6
=3/6
=1/2
=2/1 hours
=2 hours
Account B will cost less because
Account A will cost 0.2*20= $4
Account B will cost
0.1*20 +1.5= 2+1.5= $3.5
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Answer:

Step-by-step explanation:
See comment for complete question
Given:


Required
The information that shows
by SSS
By SSS implies that, the three sides of both triangles are congruent
Already, we have:


The third side of
is 
The third side of
is 
So, for both to be congruent by SSS, the third sides must be congruent
i.e.
