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2 years ago

12

You want to buy an item that costs $100. Which is the most cost-effective choice for buying the item?

1 answer:

Lilit [14]2 years ago

5 0

C. Buying it a percent discount without sales tax.

Because of not having to pay $10, so it is awesome.

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a school librarian ordered new books for the library. 1/3 are science 2/5 are biography and the rest of the books are fiction. W

Fantom [35]

i think it would be 4/15 because science is 6/15 and fiction is 5/15

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3 years ago

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The area of a lawn is 500 square feet the length is 5 feet longer then the width what are the length and width of the lawn

Alona [7]

Step-by-step explanation:

area is base x height so 5 x 100 because as I said area is base x height.

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2 years ago

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Find the value of the expressions 3x^3-2y^3-6x^2y^2+xy for x=2/3 and y=1/2

fiasKO [112]

Hi!

$3x^3-2y^3-6x^2y^2+xy=\\\\=3\cdot(\frac{2}{3})^3-2\cdot(\frac{1}{2})^3-6\cdot(\frac{2}{3})^2\cdot(\frac{1}{2})^2+\frac{2}{3}\cdot\frac{1}{2}=\\\\=3\cdot\frac{8}{27}-2\cdot\frac{1}{8}-6\cdot\frac{4}{9}\cdot\frac{1}{4}+\frac{1}{3}=\\\\=\frac{8}{9}-\frac{1}{4}-\frac{2}{3}+\frac{1}{3}=\frac{8}{9}-\frac{1}{4}-\frac{1}{3}=\frac{32}{36}-\frac{9}{36}-\frac{12}{36}=\boxed{\frac{11}{36}}$

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2 years ago

Can someone please help me??

valkas [14]

The answer is 78 feet of fencing. This is because you need to find the perimeter of the yard. To find the perimeter of the yard, you add the sides together, so 21+21+18+18 = 78.

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Xelga [282]

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