shelbylowery789
03.04.2020 •
Mathematics
The answer and the work
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Ответ:
Step-by-step explanation:
Let's let
represent the cost of tapes, and 
be the cost of CDs.
From the problem statement, we can create the following two equations:
To solve this system of equations, we can solve for
in the second equation and substitute into the first equation to get the value of 
:
Substitution:
Now that we know the cost of the tapes, we can plug this value into either equation to get the cost of CDs:
or
Therefore, the cost of a tape is
and the cost of a CD is 
.
Ответ:
It moved over to the right on the x axis one and then it is compressed
Step-by-step explanation: