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gulaghasi [49]
3 years ago
13

Luis wants to buy a skateboard that usually sells for $79.57. All merchandise is discounted by 12%. What is the total cost of th

e skateboard if Luis has to pay a state sales tax of 7.75%. Round your intermediate calculations and answer to the nearest cent.
Mathematics
2 answers:
oksian1 [2.3K]3 years ago
7 0
How do you take a percentage off a price?

Procedure:
Get the original price: 79.57
<span>The rate is usually given as a percent: 12%
To find the discount, multiply the rate by the original price: (79.57 x 12) / 100 = 9.54
<span>To find the sale price, subtract the discount from original price: 79.57 - 9.54 = 70.03

Now add the tax of 7.75% on the sales price, 

Tax on sales price = (70.03 x 7.75) / 100 = 5.42
Total cost of item = 70.03 + 5.42 = 75.45.


</span></span>
djverab [1.8K]3 years ago
3 0
79.57 times 12% = 70.02
70.02 times 7.75% = 5.43
70.02 plus 5.43 = 75.43
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3 years ago
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Now multiply and divide by 6-i


=\frac{(5+2i)}{(6+i)}\cdot\frac{(6-i)}{(6-i)}

=\frac{30-5i+12i-2i^2}{36-6i+6i-i^2}

=\frac{30+7i-2i^2}{36-i^2}

=\frac{30+7i-2\left(-1\right)}{36-\left(-1\right)}

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