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Lady bird [3.3K]
3 years ago
10

⅔ parts of the earth surface is covered with water.

Mathematics
1 answer:
Nat2105 [25]3 years ago
4 0

Answer:

i.) 66% of the earth is covered in water

ii.) 33% is continental

Step-by-step explanation:

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Expand and simplify 3(2a+3b)+2(a+2b)
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Answer:

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Step-by-step explanation:

First start by multiplying the coefficient with the parantheses.

3(2a+3b)+2(a+2b)

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This equation cannot be further simplified.

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3 years ago
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poizon [28]

The average rate of change in the monthly rate per year is -$0.056 i.e decreases by 0.056 every consecutive year.

Step-by-step explanation:

Step 1; The initial value is $7.69 in 1980 and the final value is $6.13 in 2008.

Difference in values = Final value - initial value = $6.13- $7.69 = -$1.56 (the negative symbol indicates that the cost has gone down with time)

Period between the values =Final year - initial year = 2008 - 1980 = 28 years.

Step 2; To find the rate of change per year, we divide the difference in values in that given period of time by the number of years in that period.

Rate of change per year = Difference in values in that period/ no of years.

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So for every year between 1980 and 2008, the price of the monthly rate for basic able TV reduced by $0.056.

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