15/4 divided by 5/8 = 6/1 = 6
The ratio of Sally’s CDs to Ray’s CDs is 2: 7. Ray has 49 CDs. If Ray gives Sally 21 CDs, what will be the new ratio of Sally’s
1 answer:
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Given:
To find:
Select the true statements from the given options about the given value.
Solution:
We have,
It can be written as
Clearly, the value of x lies between 4 and 5. So, and
.
Therefore, the correct options are C and D.
<span>For this case we have the following expression:
</span>
<span> We are going to make the following change of variables:
</span>
<span>Rewriting the expression we have:
</span>
<span>Factoring the expression we have:
</span>
<span>Canceling similar terms we have:
</span>
<span>Returning the change we have:
</span>
<span> The resctrictions of the function are those that make the denominator equal to zero.
We have then:
</span>
<span> Answer:
The simplified expression is:
</span>
<span>The restrictions are:
</span>
</span>
<span> We are going to make the following change of variables:
</span>
<span>Rewriting the expression we have:
</span>
<span>Factoring the expression we have:
</span>
<span>Canceling similar terms we have:
</span>
<span>Returning the change we have:
</span>
<span> The resctrictions of the function are those that make the denominator equal to zero.
We have then:
</span>
<span> Answer:
The simplified expression is:
</span>
<span>The restrictions are:
</span>