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morpeh [17]
3 years ago
12

Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. One Day's discharge at

its mouth, 2.4 trillion gallons, could supply all of country A's households for four months. Based on this statement, determine how much water an average household uses each month. Assume that there are 100 million households in country A
Mathematics
2 answers:
pashok25 [27]3 years ago
6 0
So, one trillion is 1 and twelve zeros, thus 2.4 trillion is 2 trillions and 400 billions or 24 followed by eleven zeros, because the "4" is using up a space.

now, 1 million is 1 and six zeros, thus 100 millions is 100 and six zeros or 1 and 8 zeros.

now, is 2.4 trillions in four months, thus 2.4trillion/4 will give us how many gallons in 1 month.

to find how many households, simply let's divide it by 100 millions

\bf \cfrac{\stackrel{\textit{2.4 trillions}}{24\times 10^{11}}}{4}\implies \cfrac{24}{4}\times 10^{11}\implies 6\times 10^{11}
\\\\\\
\cfrac{\stackrel{\textit{gallons per month}}{6\times 10^{11}}}{\stackrel{households}{1\times 10^8}}\implies \cfrac{6}{1}\times \cfrac{10^{11}}{10^8}\implies 6\times 10^{11}\times 10^{-8}
\\\\\\
6\times 10^{11-8}\implies 6\times 10^3\implies \stackrel{\textit{gallons per household}}{6000}
puteri [66]3 years ago
3 0

Answer:

This is not right at all. The answer is 4000

Step-by-step explanation:

You take 2,400,000,000,000/6 = 400,000,000,000

400,000,000,000/100,000,000 = 4,000

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Solve for the unknown by using the additive inverse. Type the FULL answer in the box, without using any spaces (ex., X=5).
zavuch27 [327]

Answer:

X=16

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First you have to simplify.

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3 0
3 years ago
the lenghty of a rectangal is 8 feet more than its width. the pirimete of the rectangle is 72 feet. Find the width
morpeh [17]

Width of the rectangle is 14 ft

Step-by-step explanation:

  • Step 1: Let the width of the rectangle be x. Then length = 8 + x. Perimeter = 72 ft.

Perimeter = 2(length + width)

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