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zheka24 [161]
3 years ago
12

A gumball machine has just been filled with 50 black, 150 white, 100 red and 100 yellow gum balls that have been thoroughly mixe

d. sue and jim, each, purchased one gumball. what is the likelihood both sue and jim get red gumballs
Mathematics
1 answer:
Andrew [12]3 years ago
6 0
<span>Exactly 33/532, or about 6.2% This is a conditional probability, So what we're looking for is the probability of 2 gumballs being selected both being red. So let's pick the first gumball. There is a total of 50+150+100+100 = 400 gumballs in the machine. Of them, 100 of the gumballs are red. So there's a 100/400 = 1/4 probability of the 1st gumball selected being red. Now there's only 399 gumballs in the machine and the probability of selecting another red one is 99/399 = 33/133. So the combined probability of both of the 1st 2 gumballs being red is 1/4 * 33/133 = 33/532, or about 0.062030075 = 6.2%</span>
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3 years ago
Convert the following measurements
Sphinxa [80]

Answer:

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4 0
2 years ago
The width of a rectangle is 9 centimeters greater than the length. Find the dimensions of the rectangle if the perimeter is 66 c
g100num [7]

Answer: Length = 12cm , width = 21cm

Step-by-step explanation:

Let the length be x , then the width is x + 9, That is

Length = x

Width = x + 9

The formula for calculating the perimeter of a rectangle is given by:

Perimeter = 2 ( Length + Width )

substituting the values , we have :

66 = 2 ( x + x + 9 )

66 = 2 ( 2x + 9 )

divide through by 2

66/2 = 2x + 9

33 = 2x + 9

subtract 9 from both sides

33 - 9 = 2x

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divide through by 2

therefore :

x = 12

This means that

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4 0
3 years ago
Please help with 8th grade math if you can’t please help and don’t troll ( ◠‿◠ )
DIA [1.3K]

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83.333333π

Step-by-step explanation:

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5 0
3 years ago
<img src="https://tex.z-dn.net/?f=4%20%5Csqrt%7B40%7D%20%20%2B%207%20%5Csqrt%7B160%7D%20" id="TexFormula1" title="4 \sqrt{40} +
dmitriy555 [2]

Answer:

36\sqrt{10}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

Simplifying the radicals in the expression

\sqrt{40}

= \sqrt{4(10)}

= \sqrt{4} × \sqrt{10} = 2\sqrt{10}

\sqrt{160}

= \sqrt{16(10)}

= \sqrt{16} × \sqrt{10} = 4\sqrt{10}

Thus

4\sqrt{40} + 7\sqrt{160}

= 4 × 2\sqrt{10} + 7 × 4\sqrt{10}

= 8\sqrt{10} + 28\sqrt{10}

= 36\sqrt{10}

5 0
3 years ago
Read 2 more answers
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