Triangle S and Triangle L are scaled copies of one
1 answer:
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Since the figures are similar, we can establish a rule of three as follows.
We know that the area of the smaller figure is
, and its volume is 
. We also know that the area of the larger figure is 
; since we don't now its volume, lets represent it with 
:
We can conclude that the volume of the larger figure is
; therefore, the correct answer is a.
We know that the area of the smaller figure is
We can conclude that the volume of the larger figure is
we have that
the total cost is
In this equation the term 30h represent the cost due to h hours at at unit of 30
and the term 0.040(30h) is equal to calculate the 4% of (30h)
so
in this problem the tax rate is equal to 4%
therefore
<u>the answer is</u>
The term 0.040(30h) represents the amount of tax she must pay