The final cost of skateboard will be $83.10
Step-by-step explanation:
Given,
Cost of skateboard = $98
Coupon = 20% off
Amount of discount = 20% of cost of skateboard
![Amount\ of\ discount=\frac{20}{100}*98\\\\Amount\ of\ discount=\frac{1960}{100}\\\\Amount\ of\ discount=\$19.6](https://tex.z-dn.net/?f=Amount%5C%20of%5C%20discount%3D%5Cfrac%7B20%7D%7B100%7D%2A98%5C%5C%5C%5CAmount%5C%20of%5C%20discount%3D%5Cfrac%7B1960%7D%7B100%7D%5C%5C%5C%5CAmount%5C%20of%5C%20discount%3D%5C%2419.6)
Cost of skateboard after discount = Cost of skateboard - Amount of discount
Cost of skateboard after discount = 98 - 19.6 = $78.4
Sales tax = 6%
Sales tax amount = 6% of discounted price
![Sales\ tax\ amount=\frac{6}{100}*78.4\\\\Sales\ tax\ amount=\frac{470.4}{100}\\\\Sales\ tax\ amount=\$4.70](https://tex.z-dn.net/?f=Sales%5C%20tax%5C%20amount%3D%5Cfrac%7B6%7D%7B100%7D%2A78.4%5C%5C%5C%5CSales%5C%20tax%5C%20amount%3D%5Cfrac%7B470.4%7D%7B100%7D%5C%5C%5C%5CSales%5C%20tax%5C%20amount%3D%5C%244.70)
Final cost of skateboard = Discounted price + Sales tax
Final cost of skateboard = 78.40+4.70 = $83.10
The final cost of skateboard will be $83.10
Keywords: sales tax, addition
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Answer:
m=(-6,6)
Step-by-step explanation:
m^2 -36 = 0
Reorder the terms:
-36 + m^2 = 0
Solving for variable 'm'.
Add '36' to each side of the equation.
-36 + 36 + m^2 = 0 + 36
Combine like terms: -36 + 36 = 0
0 + m^2 = 0 + 36
m^2 = 0 + 36
Combine like terms: 0 + 36 = 36
m^2 = 36
Simplifying
m^2 = 36
Take the square root of each side:
√m^2=+/-√36
m=(+/-)6
m = {-6, 6}