Math Snap

STEP 1

Assumptions1. The selling price of the scientific calculator is $15. The markup is25% of the dealer's cost3. The selling price is the sum of the dealer's cost and the markup

STEP 2

We can express the selling price as the sum of the dealer's cost and the markup. Let's denote the dealer's cost as $C$.
$$elling\, price = C + Markup$$

STEP 3

The markup is given as25% of the dealer's cost. We can express this as $0.25C$.
$$Markup =0.25C$$

STEP 4

Substitute the markup in the selling price equation.
$$elling\, price = C +0.25C$$

STEP 5

implify the equation.$$elling\, price =1.25C$$

STEP 6

Now, we can solve for the dealer's cost $C$ by dividing the selling price by1.25.
$$C = \frac{elling\, price}{1.25}$$

STEP 7

Substitute the given selling price into the equation.
C = \frac{\($\)15}{1.25}

Calculate the dealer's cost.
C = \frac{\($\)15}{1.25} = \($\)12The dealer's cost of the calculator is $12.