What angle is formed by the arms of a clock when the time is 6:50 a.m

Mathematics

1 answer:

Masteriza [31]3 years ago

5 0

The angel would be 95°
x=300°-(180°+24.99999)
300-204.99999
then round
so 95°

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one days discharge at its mouth, 3 trillion gallons, could supply all of country A’s household for 5 months. how much water an a

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let's use engineering notation for the sake of brevity.

1 trillion is 1,000,000,000,000, or just 1E12, twelve zeros.

1 million is then 1E6, six zeros.

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if there are 200million inhabitants in A, namely 200E6 or 2E8 inhabitants, how many gallons per inhabitant from all those 6E11 gallons?

$\bf \begin{array}{ccll} gallons&households\\ \cline{1-2} 6E11&2E8\\ x&1 \end{array}\implies \cfrac{6E11}{x}=\cfrac{2E8}{1}\implies 6E11=2E8x \\\\\\ \cfrac{6E11}{2E8}=x\implies \cfrac{600000000000}{200000000}=x\implies 3000=x$