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Sagot :
Solution:
We know the following:
- A student used a 30% coupon on a jacket
- The cost was $67.34 after the coupon was used.
Thus, the equation created:
- 67.34 + 30(Original price)/100 = Original price
Let's represent the original price as x. Then:
- 67.34 + 30(x)/100 = x
Subtract 30x/100 both sides.
- 67.34 + 30(x)/100 - 30(x)/100 = x - 30x/100
- => 67.34 = x - 30x/100
Change x to 100x/100.
- => 67.34 = 100x/100 - 30x/100
Simplify the RHS:
- => 67.34 = 70x/100
Use cross multiplication.
- => 6734 = 70x
Divide 70 both sides.
- => x = 6734/70 = $96.2 (Original price)
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