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Kaylis [27]
2 years ago
10

The price of an item yesterday was 130. Today, the price fell to 91 . Find the percentage decrease.

Mathematics
2 answers:
Shalnov [3]2 years ago
7 0

Answer:

30%

Step-by-step explanation:

130-91=39

39 / 130 =0.3

0.3x100=30

and you got the answer!

yKpoI14uk [10]2 years ago
5 0

Answer:

30%

Step-by-step explanation:

percentage decrease has the formular=

decrease/actual number× 100/1

decrease= 130-91=39

percentage decrease= 39/130 × 100

=0.3×100= 30%

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Step-by-step explanation:

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What is 5.1 x 10^-1 as an ordinary number?
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I need help with this problem <br><br> Someone explain this to me
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16.5

Step-by-step explanation:

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3 years ago
A new basketball is on sale for $24.98. If this is a discount of 16%, what was the original cost of
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Step-by-step explanation:

7 0
3 years ago
a ski chalet offers 2 weekend packages. one package provides 2 nights and 3 meals for$280. the other provides 2 nights and 5 mea
Helga [31]


<span> <span>1st</span></span><span> formula 2n + 3m = 280
</span><span><span>
</span><span>2nd</span></span><span> formula 2n + 5m = 320
</span><span><span>
</span><span>rearrange 1st</span> formula to equal n:</span>

    <span><span>2n = -3m + 280
</span>      </span><span>n = -3/2 m + 140
</span><span><span>
</span><span>rearrange 2nd</span> formula to equal n:</span>

 <span><span>2n = -5m + 320
</span> </span><span>n = -5/2m + 160
</span><span><span> so now you have

</span>-3/2m + 140 = -5/2m + 160 </span>

<span><span>Rearrange to become:
</span> </span><span><span>-3/2m + 5/2m = 160 - 140
</span> </span><span>m = 20
</span><span>
</span>

<span>Now place 20 into the very 1st</span><span><span> equation in place of the letter m
</span> </span><span><span>2n + 3(20) = 280
</span> </span><span><span>2n + 60 = 280
</span> </span><span><span>2n = 220
</span> </span><span>n = 110
</span><span><span>
</span>so it costs $110 per night, $20 per meal</span>


8 0
3 years ago
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