An advertisement states that 8 thermometers cost 12.42 minus a 3% disc. Dr. wants to order a dozen to take advantage of the savings sales tax is 5%. What would the cost be? I divided 8 into 12.42 wich gives you 1.55 per thermometer 1.55 x 12 thermometers = 18.60 18.60+93 cent sales tax = 19.53 19.53-.59 disc = 18.94 Check me Thanks
To find the cost of a dozen thermometers, we can follow these steps:
1. Start with the information provided in the advertisement: 8 thermometers cost $12.42 after a 3% discount.
2. Divide the total cost ($12.42) by the number of thermometers (8) to find the cost per thermometer.
$12.42 / 8 = $1.55 per thermometer.
3. Since a dozen consists of 12 thermometers, multiply the cost per thermometer by 12 to find the cost of a dozen.
$1.55 x 12 = $18.60.
4. Next, let's calculate the sales tax. Given that the sales tax is 5%, we'll multiply the cost of a dozen (including any previous discounts) by 5% to get the sales tax amount.
$18.60 x 0.05 = $0.93.
5. Add the sales tax to the cost of a dozen thermometers to find the total cost before applying any discount.
$18.60 + $0.93 = $19.53.
6. Lastly, if there is an additional discount of $0.59, subtract it from the total cost.
$19.53 - $0.59 = $18.94.
Therefore, the final cost, after the discount and including sales tax, would be $18.94.