2 years ago

Evaluate $\frac{20}{101}-\frac{20}{99}$. Express your answer in simplest form.

1 answer:

7 0

Detail: 37

Answer: 69

Gummi

Blick: 55

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balandron [24]

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With replacement

$probability \ of \ spade = \frac{13}{52} = \frac{1}{4} \\\\ probability \ of red\ card = \frac{26}{52} =\frac{1}{2}$

$probability \ of \ spade \ then \ red\ card\ without\ replacement =$ $\frac{1}{4} \times \frac{1}{2} = \frac{1}{8}$

Without replacement

$probability \ of\ spade = \frac{13}{52} = \frac{1}{4} \\\\probability \ of \ spade\ again =\frac{12}{51} = \frac{4}{17}$

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Tamiku [17]

X = 7 and Y = 9

Because the parallel sides have to be equal and these inputs make the side equal.

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MaRussiya [10]

Answer:

$y + 13 = 4 \\ y = 4 - 13 \\ y = - 9$

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