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svlad2 [7]
2 years ago
14

You by six notebooks and a backpack. The cost of the backpack is $17.90. You pay 6 dollars in sales tax. Your total bill is $30.

74. How much does each notebook cost?
Mathematics
1 answer:
Assoli18 [71]2 years ago
6 0
To find the answer, we first must write an equation.
($17.90+(X Notebooks)) + 6% Sales Tax = $30.74
Now, we solve the equation for X.
First, we have to find the total before the sales tax. To do this, we divide the total by 1.06
$30.74/1.06= $29
Now, we subtract the cost of the backpack and solve for X
$17.90+X=$29
X=11.10
Given that X is the total of 6 Notebooks, we divide $11.10 by 6 to find the price for each Notebook.
$11.10/6=$1.75 per notebook
It costs $1.85 for each notebook before sales tax and $1.96 after sales tax.
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