The final price is the cost plus the tax.
Since we know the tax and a percent, we can write this as
T = C(1+r)
T = what Graham paid = $87.45
C = cost before tax
r = tax rate expressed as a decimal = .40
Plugging in what we know
87.45 = C (1+.4)
87.45 = C(1.4)
Divide both sides by 1.4
C = $62.46
First you have to solve both inequalities,
3x-1>8
3x>9
x>3
and the other one
2x≤4
x≤2
then you graph each one on the number line
the graph says or, so the solution can satisfy either equation
the solution would be all real numbers except three
the way to write it is x≠3
The total percent discount on the jeans is 35% amounting to $77
<h3>Discount</h3>
- Cost of a pair of jean = $220
- Discount from last season = 15%
- Discount from Thanksgiving day = 20%
Total percentage discount = 15% + 20%
= 35%
Amount of discount = Total percentage discount × Cost of a pair of jean
= 35% × $220
= 0.35 × 220
= $77
Therefore, the total percent discount on the jeans is 35% amounting to $77
Learn more about discount:
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The vertex is ( 1, -16 ).
