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- anonymous

If whitney bought 3 shirts for 24.99 and sales tax was 7.5% what was the total cost of the purchase including sales tax?

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- jdoe0001

well, 24.99 + tax, tax is 7.5% of 24.99
meaning, 24.99 is the 100%
if 24.99 is the 100%, what's 7.5% of that?
well \(\bf \begin{array}{ccllll}
amount&\%
\\\hline\\
24.99&100\\
x&7.5
\end{array}\implies \cfrac{24.99}{x}=\cfrac{100}{7.5}
\)

- anonymous

I got $26.86425 @YoloShroom

- anonymous

Isnt 1.87425? @jdoe0001

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- jdoe0001

yes

- YoloShroom

i may have misread the question, i assumed that the question had sales take that wasnt included. Jdoe read it as though it was already included. Sorry about that

- jdoe0001

so the total purchase is 24.99 + 1.87425

- anonymous

So when I add that that will be my answer @YoloShroom @jdoe0001

- YoloShroom

you may need to round to the nearest tenth

- jdoe0001

yeap

- anonymous

So it will be 27? @YoloShroom

- YoloShroom

$26.86 including sales tax

- anonymous

Okay so thats the answer? @YoloShroom

- YoloShroom

Yes ^_^

- anonymous

Do u mind if u help me with one more problem? @YoloShroom

- anonymous

The Length of the highway is 700 miles. If 1 inch represents 75 miles, what is the length of the highway on the map? @jdoe0001 can u help me with this one?

- YoloShroom

ll take a look at it :)

- YoloShroom

so first, we would divide 700/75 to find out how many inches long it is.
Mind doing that and telling me what you get?

- anonymous

Yeah I got 9.3333 repeating? @YoloShroom

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