Lauren goes to a store and buys an item that costs x dollars. She has a coupon for 5% off, and then a 9% tax is added to the discounted price. Write an expression in terms of x that represents the total amount that Lauren paid at the register.Answer:
Q. Lauren goes to a store and buys an item that costs x dollars. She has a coupon for 5% off, and then a 9% tax is added to the discounted price. Write an expression in terms of x that represents the total amount that Lauren paid at the register.Answer:
Calculate Discount Amount: Calculate the amount of discount Lauren gets with her coupon.The discount is 5% of x, so the discount amount is 0.05×x.
Find Discounted Price: Subtract the discount from the original price to find the discounted price.The discounted price is x−0.05×x.
Simplify Discounted Price: Simplify the expression for the discounted price.The discounted price simplifies to 0.95×x (since x−0.05×x=1x−0.05x=0.95x).
Calculate Sales Tax: Calculate the sales tax on the discounted price.The sales tax is 9% of the discounted price, so the tax amount is 0.09×(0.95×x).
Find Total Amount Paid: Add the sales tax to the discounted price to find the total amount paid.The total amount paid is 0.95×x+0.09×(0.95×x).
Simplify Total Amount Paid: Simplify the expression for the total amount paid. The total amount paid simplifies to 0.95×x+0.0855×x (since 0.09×0.95=0.0855).
Combine Like Terms: Combine like terms to get the final expression.The final expression for the total amount paid is (0.95+0.0855)×x, which simplifies to 1.0355×x.
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