A jewelry supply shop buys silver chains from a manufacturer for c dollars each, and then sells the chains at a 40% markup. Write an expression for the retail price of a silver chain.
Answer: The expression for the retail price of a silver chain is 1.4c.
Step-by-step explanation:
Let the amount of jewellery be c dollars.
Rate of mark up = 40%
So, Amount of mark up would be
\(\dfrac{40}{100}\times c\\\\=0.4c\)
So, Amount after mark up would be
\(c+0.4c\\\\=1.4c\)
Hence, the expression for the retail price of a silver chain is 1.4c.