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If the sales tax on a $12.00 purchase is $0.66, what is the sales tax

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If the sales tax on a $12.00 purchase is $0.66, what is the sales tax [#permalink]

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New post 24 Jan 2018, 22:47
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Re: If the sales tax on a $12.00 purchase is $0.66, what is the sales tax [#permalink]

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New post 24 Jan 2018, 22:52
B

Let x be the sales tax rate.

$12*x/100= 0.66
Solving x=22/4%

For $20,
22/4*20/100=$1.10


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Re: If the sales tax on a $12.00 purchase is $0.66, what is the sales tax [#permalink]

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New post 25 Jan 2018, 07:17
Bunuel wrote:
If the sales tax on a $12.00 purchase is $0.66, what is the sales tax on a $20.00 purchase?

A. $1.08
B. $1.10
C. $1.16
D. $1.18
E. $1.20

\(\frac{0.66}{12}*20\) = 1.10, Answer will be (B)
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Re: If the sales tax on a $12.00 purchase is $0.66, what is the sales tax [#permalink]

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New post 26 Jan 2018, 21:47
Bunuel wrote:
If the sales tax on a $12.00 purchase is $0.66, what is the sales tax on a $20.00 purchase?

A. $1.08
B. $1.10
C. $1.16
D. $1.18
E. $1.20


Simple by using cross-multiplication Method,

\($12 ---- $0.66\)
\($20 ----- $x\)

\(x = $1.1\)
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Re: If the sales tax on a $12.00 purchase is $0.66, what is the sales tax   [#permalink] 26 Jan 2018, 21:47
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