3 years ago

Suppose you are buying a $1 item. How much sales tax would you be buying in each province?

1 answer:

4 0

Just multiply 1.00 by the sales tax. then add the tax u get to the 1.00. example: a) 1.00 x 8% = .08 now 1.00 + .08= 1.08 total.

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Jackson's football team won 70% of the games that

MariettaO [177]

14 is 70% of 20.
They played 20 games

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3 years ago

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Harrizon [31]

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3 years ago

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Tatiana [17]

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3 years ago

The coffee Lily likes is composed of 97.3% water and 2.7% cocoa. The coffee John likes is composed of 96% water and 4% cocoa. Ho

mestny [16]

30 ounces of the coffee John likes consists of

$0.96\cdot30=28.8$ ounces of water
$0.04\cdot30=1.2$ ounces of cocoa

To this mixture we're adding $x$ ounces of water, so that the new mix has a total volume of $30+x$ ounces and matches the composition of the coffee Lily likes. This means it would consist of

$0.973\cdot(30+x)=28.8+x$ ounces of water
$0.027\cdot(30+x)=1.2$ ounces of cocoa (same amount of cocoa as before because pure water is being added)

Solve for $x$ :

$0.973(30+x)=28.8+x\implies29.12+0.973x=28.8+x$

$\implies0.39=0.027x$

$\implies x\approx14.4$

###

Just to confirm: the new mixture consists of

$28.8+14.4=43.2$ ounces of water
$1.2+0=1.2$ ounces of cocoa

giving a total volume of $43.2+1.2=44.4$ ounces of coffee, and $\dfrac{43.2}{44.4}\approx0.973$ , as required.

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3 years ago

If (1/4) of (4/3) is subtracted from 2, what is the resulting value?

Bad White [126]

$2-\dfrac{1}{4}\cdot\dfrac{4}{3}=\\
2-\dfrac{1}{3}=\\
\dfrac{6}{3}-\dfrac{1}{3}=\\
\dfrac{5}{3}$

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3 years ago