document.write( "Question 175325: please help me solve the equation, the amount of sales tax charged is proportional to the value of the item bought. If the tax on a $110.00 item is $8.50, what is the tax on a $150.00 item? \n" ); document.write( "

Algebra.Com's Answer #130398 by Mathtut(3670) $\"\"$ $\"About$

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this is a direct proportion problem
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\n" ); document.write( "this means when one variable increases then so does the other and vice versa
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\n" ); document.write( " $\"110%2F8.5=150%2Fx\"$ you will notice that the value increased from 110 to 150 so the tax has to increase too
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\n" ); document.write( "cross multiply
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\n" ); document.write( "8.5(150)=(110)x
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\n" ); document.write( "110x=1275
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\n" ); document.write( " $\"highlight%28x=11.6%29\"$ dollars in tax
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