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3 years ago

A bag contains 20 marbles. The probability of picking a yellow marble is 3/4. How many marbles are yellow?

Mathematics

2 answers:

emmasim [6.3K]3 years ago

8 0

15 because 3/4 is equivalent to 75% and 75% of 20 is 15.

GalinKa [24]3 years ago

8 0

The correct answer is 15 because 3/4 or 75% of 20 is 15

Hope this helps

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Y is directly proportional to x.

s344n2d4d5 [400]

Answer:

Step-by-step explanation:

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3 years ago

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Help answer please!!

12345 [234]

Answer:

h = 19.7 ft.

Step-by-step explanation:

Use the Pythagoras Theorem

$(Hypotenuse)^2 = (Base)^2 + (Perpendicular)^2\\\\(20)^2=(3.5)^2+(h)^2\\400=12.25+h^2\\400-12.25=h^2\\387.75=h^2\\$

Now we take square root on both sides,

$\sqrt{387.75} =\sqrt{h^2}\\19.69=h\\h=19.7\ ft\\$

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6 0

3 years ago

Will mark brainliest and 15 points

insens350 [35]

Answer:

Step-by-step explanation:

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6 0

3 years ago

X^2+y^2-4y-15=6

myrzilka [38]

Answer:

x^2 + y^2 - 4y - 15 = 6

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8 0

3 years ago

Find the tenth term of the geometric sequence, given the first term and common ratio.

Natalija [7]

Answer:

$a_{10}=\dfrac{1}{128}$

Step-by-step explanation:

In the geometric series:

$a_1=4\\ \\r=\dfrac{1}{2}$

The nth term of the geometric sequence can be calculated using formula

$a_n=a_1\cdot r^{n-1}$

In your case, n = 10, then

$a_{10}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^{10-1}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^9\\ \\=2^2\cdot \dfrac{1}{2^9}\\ \\=\dfrac{1}{2^{9-2}}\\ \\=\dfrac{1}{2^7}\\ \\=\dfrac{1}{128}$

8 0

3 years ago