Rewriting Percent Expressions Warm Up To make a

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Rewriting Percent Expressions

Rewriting Percent Expressions

Warm Up

Warm Up

To make a profit, stores mark up the prices on the items they sell.

To make a profit, stores mark up the prices on the items they sell. A sports store buys skateboards from a supplier for s dollars. What is the retail price for skateboards that the manager buys for $35 and $56 after a 42% markup?

Why is the 42% markup shown as 0. 42? Whys is it multiplied by

Why is the 42% markup shown as 0. 42? Whys is it multiplied by s?

Step 2 Retail Price = Original Price + Markup (This equation can always be

Step 2 Retail Price = Original Price + Markup (This equation can always be used to calculate retail price. Be sure to use the actual markup. ) Retail price = s + 0. 42 s Retail Price = 1. 42 s

Step 3 Use the expression to find the retail price of each skateboard. S

Step 3 Use the expression to find the retail price of each skateboard. S = $35 → Retail Price = 1. 42($35) = $49. 70 S = $56 → Retail Price = 1. 42 ($56) = $79. 60 What if the markup was changed from 42% to 34%, how would this change the expressions above?

A discount store marks down all of its holiday merchandise by 20% off the

A discount store marks down all of its holiday merchandise by 20% off the regular selling price. Find the discount price of decorations that regularly sell for $16 and $23.

Step 2 Sale Price = Original Price – Mark down (This equation can always

Step 2 Sale Price = Original Price – Mark down (This equation can always be used to calculate sale price. Be sure to use the actual mark down. ) Sale Price = p – 0. 2 p Sale Price = 1 p – 0. 2 p Sale Price = 0. 8 p

Step 3 Use the expression to find the sale price of each decoration. P

Step 3 Use the expression to find the sale price of each decoration. P = $16 → Sale Price = 0. 8($16) = $12. 80 P = $23 → Sale Price = 0. 8($23) = $18. 40

Mark Up vs. Mark Down Mark Up Expressions S = $35 → Retail Price

Mark Up vs. Mark Down Mark Up Expressions S = $35 → Retail Price = 1. 42($35) = $49. 70 S = $56 → Retail Price = 1. 42 ($56) = $79. 60 Mark Down Expressions P = $16 → Sale Price = 0. 8($16) = $12. 80 P = $23 → Sale Price = 0. 8($23) = $18. 40 The numbers in red are called coefficients. What do you notice?

A bicycle shop marks down each bicycle’s selling price b by 24% for a

A bicycle shop marks down each bicycle’s selling price b by 24% for a holiday sale. a. Draw a bar model to represent the problem. b. Write an expression for the sale price.

Jane sells pillows. For a sale, she marks them down 5%. a. Write two

Jane sells pillows. For a sale, she marks them down 5%. a. Write two expressions that represent the sale price of the pillows. b. If the original price of a pillow is $15. 00, what is the sale price?

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