Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is a
2 answers:
Answer:
3 months.
Step-by-step explanation:
Let x represent the number of months.
We have been given that Tom has a collection of 30 CDs and he is adding 1 CD a month to his collection.
So number of CDs in Tom's collection after x months would be: .
We are also told that Nita has a collection of 18 CDs. Nita is adding 5 CDs a month to her collection. So number of CDs in Nita's collection after x months would be: .
To solve for number of months, when both will have same number of CDs, we will equate both expressions as:
Therefore, after 3 months they will have the same number of CDs.
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<h2>Hello!</h2>
The answer is: [-2,2]
<h2>Why?</h2>The range of a function shows where the function can exist in the y-axis.
To know the range of the function, we have to isolate x,
So
The only possible values that y can take go from -2 to 2. Taking values out of these values will give as result a non-real number.
Therefore,
The range of the function is [-2,2]
Have a nice day!