Let's call the store value as s and the wholesale price as w. A store prices tapes by raising the wholesale price 50%(0.5 in decimals) and adding 25 cents, writing this as an equation, we have

$s(w)=w+0.5w+0.25$

If we invert the equation we're going to find the the wholesale price as a function of the store price.

$\begin{gathered} s=w+0.5w+0.25 \\ s=1.5w+0.25 \\ s-0.25=1.5w \\ w(s)=\frac{s-0.25}{1.5} \end{gathered}$

Now, to find the wholesale price if the sales price is $1.99, we just need to evaluate s = 1.99 on the function we created.

$w(1.99)=\frac{1.99-0.25}{1.5}=1.16$

The wholesale price is $1.16.

5 0

1 year ago

Complete the expressions to find the perimeter PP of a rectangle that is 7 inches long by 5 inches wide.

neonofarm [45]

PP = 2L + 2W. Here, PP = 2(7 inches) + 2(5 inches) = 24 inches.

7 0

3 years ago

M is the midpoint of PQ, N is the midpoint of MQ, and L is the midpoint of MN. IfPQ = 64, find LN.

alisha [4.7K]

LN=8 because every time there is a midpoint you have to divide it in half. So 64,32,16,8

7 0

3 years ago