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OpenStudy (anonymous):
3x+y=99.84 where x are the three pairs of jeans, and y is the amount of tax paid. If x=32, 3(32)+y=99.84 96+y=99.84 y=3.84 The amount of tax paid was $3.84. Now, each pair of jeans had a total tax of 3.84/3=$1.28. To find the tax rate then, we take 1.28/32=.04. This makes the tax rate 4%. Check: 32*1.04=33.28 33.28*3=99.84 and 96*1.04=99.84 what are the x = 0.07*(5x) = tax on five DVDs Equation: Variable: x Constant: Coefficient:
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