Math Help: Solve algebra function

Susan Hyde
timer Asked: Jun 26th, 2014
account_balance_wallet $5

Question Description

Jake's BBQ sells its sauce for $10.75, including 8.5% tax. To the nearest penny, what is the cost of the sauce before tax? 


Did I do this right? 
1+0.085x=10.75 
1.085x=10.75 
10.75/1.085=9.907 

$9.91

Tutor Answer

Ayma R
School: New York University

Jake's BBQ sells its sauce for $10.75, including 8.5% tax. To the nearest penny, what is the cost of the sauce before tax? 

$10.75-selling price

the selling price however includes the tax thus it is at 108.5%

$10.75=108.5%

    ?     =100%

when you cross multiply

$10.75*100%/108.5%=$9.907

=$9.91

Your answer is correct. 

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Review

Susan Hyde
Good stuff. Would use again.

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