MATHEMATICS MIDDLE SCHOOL

A jar contains 6 red, 8 blue, one white, 7 black, and twoyellow marbles
Use this information to determine the probability of
selecting
1) a white marble
2) a red marble
3) a yellow marble
4) a purple marble
5) a black marble

Answers

Answer 1
Answer:

Answer:

1) 1/23  2) 6/23  3) 2/23  4) 0/23  5) 7/23

Step-by-step explanation:

There are 23 marbles in total.

1) 1/23    There is 1 white marble.

2) 6/23   There are 6 red marbles.

3) 2/23    There are 2 yellow marbles.

4) 0/23   There are 0 purple marbles.

5) 7/23    There are 7 black marbles.

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Solving a polynomial equation by factoring 36d^3-121d=0

Answers

For this case we must factor the following equation:

36d ^ 3-121d = 0

It is observed that both terms contain the variable "d", so we can take it out as a common factor:

d (36d ^ 2-121) = 0

On the other hand, we look for the factors of 36 and 121:

36: 1,2,3,4,6,9,12,18,36

121: 1, 11,121

The greatest common factor between both numbers is 1.

Thus, the expression is factored as:

d (36d ^ 2-121) = 0

Thus, one of the roots of the polynomial is 0.

36d ^ 2-121 = 0\n36d ^ 2 = 121\nd ^ 2 = \frac {121} {36}\nd = \pm \sqrt {\frac {121} {36}}\nd = \pm \frac {11} {6}\n

Answer:

d (36d ^ 2-121) = 0\nd_ {1} = 0\nd_ {2} = \frac {11} {6}\nd_ {3} = - \frac {11} {6}

Jordan was trading baseball cards with some friends. He gave 15 cards to Tommy and got 3 back. He gave two thirds of his remaining cards to Elaine and kept he rest for himself m. In the end he had 25 cards. How many baseball cards did he start with?

Answers

87; If he gave two thirds of his remaining cards to Elaine, then he had one third left.  If one third of his remaining cards is 25, then 25 x 3 will give you what he had after trading with Tommy.  When he finished trading with Tommy he had 75 cards.  if he gave away 15 cards, but got three back, then he must have had 87 cards to begin with.

Check your answer:

87-15 = 72

72+3 = 75

2/3 of 75 = 50

75-50 = 25

Great!

Please if you get any of these, please help!

Answers

Hey try and use Socratic or photomath they have really helped me

Tell me a number that is greater than 832,458 but less than 832,500

Answers

the answer is 832,459
Well, first we have to see how many numbers can go in-between those numbers.
So 832,458 - 832,500 = 42

So 42 numbers can go in-between that number here is all of them:

832,459
832,460
832,461
832,462
832,463
832,464
832,465
832,466
832,467
832,468
832,469
832,470
832,471
832,472
832,473
832,474
832,475
832,476
832,477
832,478
832,479
832,480
832,481
832,482
832,483
832,484
832,485
832,486
832,487
832,488
832,489
832,491
832,492
832,493
832,494
832,495
832,496
832,497
832,498
832,499

Hope I Helped You!!!

Pam typed 2.5 pages in 15 minutes. At that rate, how many minutes will it take her to type 23 pages?

Answers

In the given question, it is already mentioned that Pam takes 15 minutes to type 2.5 pages. this information should be used as the main information for reaching the desired answer.
Pam typed 2.5 pages in = 15 minutes
Then time taken by Pam to type 23 pages = (15/2.5) * 23
                                                                     = 345/2.5
                                                                     = 3450/25
                                                                    = 138
So Pam will take 138 minutes to type 23 pages
Well, first of all, you have to compare;
15 minutes=2.5 pages
              x=23 pages
   Then you cross multiply. By the way, i replaced the unknown with x. Anyway, x multiplies 2.5 and 23 multiplies 15. So that will be;
2.5x=345
  Then you divide both sides by 2.5. This is done to remove all that is attached to x to find x
2.5x/2.5 = 345/2.5
  Therefore, 345 divided by 2.5 is 138. So;
x=138
  It will take 138 minutes to type 23 pages. HOPE I HELPED. 

Como resolver y=1-2.5

Answers


I don't really speak Spanish but I'll guess that says

 How do I solve  y = 1 - 2.5

Unless I'm missing something, there's not even any algebra here.  

The way we subtract a bigger number from a smaller number is first we subtract the smaller number from the bigger number the regular way, then we prepend a minus sign.


y = 1 - 2.5 = -(2.5 - 1) = -1.5
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Steps to convert 36/10 into a decimal
I REALLY REALLY REALLY NEED HELP PLEASEEEBRAINLIEST+THANKS**********