Answer:
Rita is left with approximately
Step-by-step explanation:
Given:
Price for trousers=
Price for shirt =
Price for headscarf =
Total Money she Spent = Price for trousers + Price for shirt + Price for headscarf =
Total Money she had before =
∴Total Money left = Total Money she had - Total Money she spent =
Rounding to nearest whole number ≈
We have .
To find inverse function we substitute x with
and vice-versa to get
Now solve for . Note that I will use
instead.
So we find that .
Hope this helps.
Answer:
Irrational.
Step-by-step explanation:
Rational means that it is a whole number and can be written as a fraction. That doesn't apply for square rooted numbers. So, is irrational.