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gogolik [260]
3 years ago
14

it cost a faimly 305.00 to buy a 11ft by 14 ft rug if the cost is porpotional to the area what will it cost the family to buy a

16ft by 18ft rug
Mathematics
1 answer:
Nataliya [291]3 years ago
7 0
So what we do first is find out the cost per foot which is 305÷154=1.9805194805194805195
Then we find out the area of the second rug which is 288 feet and multiply that by the cost 1.9805194805194805195. We then get 1.9805194805194805195x288=570.38961038961038961
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AysviL [449]
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What’s bigger - 2/3 or -0.8
Salsk061 [2.6K]

Answer:

-2/3  is greater than  -0.8

Step-by-step explanation:

-2/3 when made into a decimal is about -0.67

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2 years ago
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The thickness of a U.S. penny is 5.98 X 10-2 inch.
Aleksandr [31]

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Step-by-step explanation:

For this exercise you have to remember the Product of powers property, which states that:

(a^m)(a^n)=a^{(m+n)}

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You know that the thickness of 1 pennie is 5.98*10^{-2}\ inches, then, you can write the following proportion:

\frac{5.98*10^{-2}}{1}=\frac{x}{2.5*10^9}

Solve for "x":

(2.5*10^9)(\frac{5.98*10^{-2}}{1})=x\\\\x=14.95*10^7

To express this height in Scientific notation the decimal point must be after the first digit, so you must move it one place to the left:

x=1.495*10^8

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