MATHEMATICS MIDDLE SCHOOL

A jar contains 4 red marbles, 4 green marbles, and 5 blue marbles.If we choose a marble, then another marble without putting the first one back in the jar, what is the probability that the first marble will be blue and the second will be green?

Answers

Answer 1
Answer:

Answer:

20/156 or 5/39

Step-by-step explanation:

the first part of the equation will be:

5/13 (5 is how many blue and 13 is altogether)

the next part of this equation is the green marble. Because we didn't put the blue marble back, the next part of the equation will be:

4/12 (4 is how many green and 12 is altogether now that one blue was taken out)

and from there, you multiply 5/13 with 4/12, with will give you 20/156, or 5/39 if you simplify.
Answer 2
Answer:

Answer: On khan it is 5/39

Step-by-step explanation:

just got it right lol

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PLEASE HELP I DON'T UNDERSTAND
Help meh pls......I think it might be A.or B. But I’m not sure

What is 2/3 of 96? What is 5/6 of 84? Thank u please answer

Answers

I will convert the fraction to percent. 2/3 = 66%
96*66%= 63.36
5/6 = 83%
84 * 83%= 69.72
2/3 of 96 is 64
5/6 of 84 is 70


Hope this helped please leave a Thank you if so :)

There are some hats in a box. 1/6 of them are red, 1/3 of blue, and 3/7 of the remainder are green. If there are 27 green hats, how many hats are there altogether

Answers

1/6 are red and 1/3 are blue 
that means 1/6 + 2/6 = 3/6 = 1/2 are either red are blue 
3/7 of the remainder is 3/14 of the total 
3/14 x = 27 
x = 27(14/3) = 126 

there are 126 caps 
126 / 6 = 21 are red 
126 / 3 = 42 are blue 
there are 63 left, of which 3/7 are green 
3/7 (63) = 27 ==> 27 green caps 

total of 126 caps

Hope this helps :)
rhere are 30 hats all together

Write an expression that has two terms. Your expression should have a variable and a constant

Answers

This is a good expression. x+2. This is simple. x is the variable and 2 is the constant.

there are 12 girls and 18 boys in a class. What is the largest number of groups they can be split up into and have the same number of boys and girls on each team?

Answers

They all can be split up to 6 groups because 12+18=30 so each group will have 5 kids in it.

Please can someone help me with this question. Thanks so much.

Answers

5 5/6 plus 6 3/6 plus 8 4/6 plus 4 1/6 equals 25 1/6. 27 minus 25 1/6 equals 1 5/6. 1 5/6 is your answer
5 (5)/(6)+6 (3)/(6)+8 (4)/(6)+4 (1)/(6)=25 (1)/(6)
27-25 (1)/(6)=1 (5)/(6)

How do you write 525.048 in word from

Answers

five hundred twenty-five and forty-eight thousandths...
hope this helps! :D
five hundred and twenty five point zero four eight is the answer for the question
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