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harina [27]
1 year ago
11

icating any part of this book is prohibited by law. Solve. 18. EXPLAIN Farzana knows that the additive identity property states

that adding 0 to a number results in the same number. She reasons that the multiplicative identity property probably states that multiplying a number by O results in the same number. Is she correct? Explain.​
Mathematics
1 answer:
Dahasolnce [82]1 year ago
3 0

Answer:

No, since when you multiply a number by 0, that means you are not adding that number to the sum which is 0. Since there is no addition going on, the answer is 0, so when you multiply any number by 0, the answer is 0.

Step-by-step explanation:

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Answer:

25%

Step-by-step explanation:

Let the original price of A pair of skis be $100

discount given on A pair of skis = 20% on original price

discount value of A pair of skis in $ = 20% * $100

                   =  (20 * 100)/100 = $20

discounted price of A pair of skis =  original price - discount = 100 -20 = $80

in order to increase discounted price to original price of $100

there must be increase of $20 to discounted price which is $80

percentage increase on discounted price   to return to the original price =

(increased \ amount / discounted \ price) * 100 \\=>( 20/80) * 100 =  25\\

therefore 25% must be increase on discounted price to return to the original price

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