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3 years ago

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In a game, 2 players each flip a coin. If both land on heads, player A gets 2 points and player B loses 1 point. If both land on

tails, player B gets 2 points and player A loses 1 point. Find the expected value of the game for each player.

1 answer:

almond37 [142]3 years ago

8 0

I think is A that what i think ;:;::::)(/(?;.)(;:

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Beatrice built about 1/3 of a sandcastle. Linda built 4/7 of the same castle. What fraction of the sandcastle did they build tog

wlad13 [49]

Answer

Find out the what fraction of the sandcastle did they build together .

To prove

Let us assume that the fraction of the sandcastle they build together be x .

As given

$Beatrice\ built\ about\ \frac{1}{3}\ of\ a\ sandcastle.$

$Linda\ built\ \frac{4}{7}\ of\ the\ same\ castle.$

Than the equation becomes

$x = \frac{1}{3} +\frac{4}{7}$

L.C .M of (3,7) = 21

solving

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$x = \frac{19}{21}$

Therefore the fraction of the sandcastle did they build together be

$x = \frac{19}{21}$

Hence proved

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2 years ago

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