Cecil Green sells golf hats. He knows that most people will not pay more than $20 for a golf hat. Cecil needs a 40% markup on co
1 answer:
If we call the cost C then Cecil has to mark the product up 40% of C. That means he needs to charge the whole cost (100%) + 40% of the cost.
That is 140% of C. This amount needs to be $20.
In an equation we have 140% of C which can be written
set equal to $20. We solve for C which is the cost or what Cecil should pay for a hat.
This is a proportion so we cross-multiply to solve:
C=$14.29
That is 140% of C. This amount needs to be $20.
In an equation we have 140% of C which can be written
This is a proportion so we cross-multiply to solve:
C=$14.29
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Given:
The function is
To find:
The inverse of the given function.
Solution:
We have,
Substitute m(x)=y.
Interchange x and y.
Add square of half of coefficient of y , i.e., on both sides,
Taking square root on both sides.
Add on both sides.
Substitute .
We know that, negative term inside the root is not real number. So,
Therefore, the restricted domain is and the inverse function is
.
Hence, option D is correct.
Note: In all the options square of is missing in restricted domain.
