Mathematics: Can you buy three books and for bookmarks the book cost $15 each and the bookmark cost five dollars each right in equation to show the total cost cents in dollars of the item jenny bought

Can you buy three books and for bookmarks the book

Ответ:

nicog94

14.01.2022

I'm not sure if there is enough information here. If you are asking how many books or bookmarks she can buy, you'll need a total amount of money :).

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Ответ:

katie673

26.04.2023

Mathematics

$\frac{1}{125}$

Step-by-step explanation:

The given expression is

$(5^{-2}) (5^{-1})$

The expression is about two powers with the same base, so we can use the power property of multiplication, which states that we must proceed we writing only one base and sum exponents

$(5^{-2}) (5^{-1})=5^{-2-1}=5^{-3}$

Then, we use the negative exponent property

$5^{-3}=\frac{1}{5^{3} }$

Finally, we solve the power

$\frac{1}{5^{3} }=\frac{1}{125}$

Therefore, the given expression is equivalen to $\frac{1}{125}$ .

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Can you buy three books and for bookmarks the book cost $15 each and the bookmark cost five dollars each right in equation to show the total cost cents in dollars of the item jenny bought

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