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3 years ago

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A table saw is on clearance for 20% off. If the sale price of the table saw is $380, what was the original price? Justify your s

olution. Round to the nearest cent if necessary.

2 answers:

Nikolay [14]3 years ago

5 0

20% off means it is selling for 80% of the original price ( 100% - 20% =80%)

Divide the sale price by 80% as a decimal:

380/0.80 = 475

The original price was $475

Justify:

Multiply the original price by 20% and subtract:

475 x 0.20 = 95

475-95 = $380 which is the sale price.

kogti [31]3 years ago

4 0

Answer:

Step-by-step explanation:

20% off means it is selling for 80% of the original price ( 100% - 20% =80%)

Divide the sale price by 80% as a decimal:

380/0.80 = 475

The original price was $475

Justify:

Multiply the original price by 20% and subtract:

475 x 0.20 = 95

475-95 = $380 which is the sale price.

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Express in it simplest form <br>45cm :0.1m

expeople1 [14]

Answer:

$\frac{9}{2}$

or

$\frac{4.5}{1}$

Step-by-step explanation:

we have

$\frac{45}{0.1}\frac{cm}{m}$

we know that

$0.1=\frac{1}{10}$

substitute

$\frac{45}{0.1}\frac{cm}{m}=\frac{45}{(1/10)}=\frac{450}{1}\frac{cm}{m}$

Remember that

$1 \ m=100\ cm$

substitute

$\frac{450}{1}\frac{cm}{m}=\frac{450}{100}\frac{cm}{cm}$

Simplify

$\frac{450}{100}\frac{cm}{cm}=\frac{9}{2}$

or

$\frac{4.5}{1}$

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3 years ago

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gtnhenbr [62]

Scientific notation is a way of writing numbers in a form of a decimal multiplied by an exponent of 10.
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This is because the decimal point is moved seven places to the right of where it originally was.
0.000005008 will become $50.08* 10^{-7}$
Again, this is because the decimal point is moved seven places to the right of where it originally was.
So, your scientific notations are $1.2* 10^{-7}$ and $50.08* 10^{-7}$

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liubo4ka [24]

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so 8 divided by 3.3.
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3 years ago