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Alex
3 years ago
7

Suppose a bag of marbles has 4 green, 2 red, 5 yellow, 1 brown, and 7 blue marbles. What is the probability of picking a blue ma

rble, not replacing it, and picking a brown marble?
Mathematics
2 answers:
Nikitich [7]3 years ago
5 0
There are a total of 19 marbles. 

The chance of picking a blue marble is \frac{7}{19}

Since you didn't put that marble back in, there are 18 marbles still in the bag.

The chance of picking a brown marble is <span>\frac{1}{18}

Multiplying the two values together results with </span>\frac{7}{342}
Alik [6]3 years ago
3 0
The probability of picking a blue marble and not replacing it is 7 out of 19

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Alexander and Jo live 5 miles apart. They decide to leave their homes at 3 p.M. And travel toward each other. If Alexander bikes
lukranit [14]

Answer:

Step-by-step explanation:

Here is an illustration of the problem:

             ----------------------------->|<------------------

            A                                  t                     J

Alex and Jo start from their separate homes and drive towards one another.  The t indicates the time at which they meet, which is the same time for both.  Filling in a d = rt table:

              d           =        r        x        t

Alex                              14                t

Jo                                   6                t

The formula for motion is d = rt, so that means that Alex's distance is 14t and Jo's distance is 6t.

             

                      14t                               6t

   ---------------------------------->|<------------------

   A                                       t                      J

The distance between them is 5 miles, so that means that Alex's distance plus Jo's distance equals 5 miles.  In equation form:

14t + 6t = 5 and

20t = 5 so

t = .25 hours or 15 minutes.

If they leave their homes at 3 and they meet 15 minutes later, then they meet at 3:15.

3 0
3 years ago
Find the LCM of each set of numbers.<br><br><br> 1. 6,15<br><br> 2.5,9,15
Diano4ka-milaya [45]
6, and 15 is 30
2, 9, and 15 id 54 plz mark me as brainliest
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8 0
2 years ago
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Simplify (4n^4 - 3n^2 + n)+ (2n^4 -7n^2 + 9n). Express your answer without factoring.
Pie

Answer:

6n^4-10n^2+10n

Step-by-step explanation:

4 n^4+2n^4-3n^2-7n^2+9n+n

6n^4-10n^2+10n

4 0
2 years ago
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Help me again lol im not smart
Artyom0805 [142]
One could be |x|<-2
This could be one since no matter what you put in for x, it will always be positive.
6 0
3 years ago
Not sure need help ​
kvasek [131]

Answer:

X = 3

Step-by-step explanation:

So do 7-2 which equals 5. 5 times 6 because 6 is outside of the parentheses with no symbol, so that means to multiply. That would equal 30. You want your answer to equal 6, so you would want the number inside of the parentheses to be 1, so that 1 times 6 would be 6. 2 x 3 would be sixe, and then 7-6 would equal one. 1 times 6 would be 6. So there is your answer.

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2 years ago
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