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What are the least numbers of packs of yellow marbles and blue marbles a person would have to buy t ohave the same number of each color of marble?
That would depend on how many yellow and blue marbles are in a pack. If yellow and blue marbles are sold separately and there are the same number of marbles in a pack, buy one of each. That's probably not the case.
How can 4 red marbles make up one third of marbles and 3 blue marbles make up one fourth of the same group?
In order for 4 red marbles to be one-third of a group and 3 blue marbles to make up one-fourth of the same group the number has to equal 12.
A can with 40 marbles in it weighed 135 grams The same can with 20 marbles weighed 75 greams What is the mass of the can?
7.5 grams
In a bag there are 3 red marbles and B blue marbles. Two marbles are randomly selected from the bag without replacement. The probability that the two marbles are the same color is 0.5. What is the sum?
7
If you had ten marbles 3 blue and 7 red and you picked out three marbles at the same time what would be the odds of picking 2 blue marbles?
1 in 5.45 of picking at least 2 blue marbles any 2 from 3 is 3 correct picks =3X7(red)=21 of 2 blue only 1 pick of 3 blue only any 3 from 10=120 120/22=5.45
What separation technique can be used to separate a red and blue marbles of same size and mass?
A technique called chromatography or a technique called filtration could be used to separate the red and blue marbles. chromatography would depend on the differences in solubility between the red and blue marbles, while filtration would depend on differences in size or density between the marbles.
What are the least numbers of packs of yellow marbles and blue marbles a person to have the same number of each color of marbles if the yellow marbles have 2 packs and the blue marbles have 3 packs?
6
What are the least numbers of packs of yellow marbles and blue marbles a person would have to buy t ohave the same number of each color of marble?
That would depend on how many yellow and blue marbles are in a pack. If yellow and blue marbles are sold separately and there are the same number of marbles in a pack, buy one of each. That's probably not the case.
How can you separate marbles and plastic beads the same size?
Put them in water.
How can 4 red marbles make up one third of marbles and 3 blue marbles make up one fourth of the same group?
In order for 4 red marbles to be one-third of a group and 3 blue marbles to make up one-fourth of the same group the number has to equal 12.
A can with 40 marbles in it weighed 135 grams The same can with 20 marbles weighed 75 greams What is the mass of the can?
7.5 grams
Explain how four red marbles can make up 13 of a group of marbles and three blue marbles make up 14 of the same group?
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
In a bag there are 3 red marbles and B blue marbles. Two marbles are randomly selected from the bag without replacement. The probability that the two marbles are the same color is 0.5. What is the sum?
7
How can you separate marbles and plastic beads of the same size?
Put them in water.
Explain how four red marbles can make up one third of a group of marbles and three blue marbles make one fourth of the same group?
minus one red marble plus one blue marble
How would you separate a red and blue marbles of the same size and mass?
At the simplest level, one would analyze the color of each marble, creating two piles of marbles (one red and one blue). If the person was not able to see colors, they might consider using a spectrometer (spectrograph). Measuring each marble individually, each marble would be placed in the device and the wavelength would be displayed by the device. Based on the wavelength (red is in the range of 620-750nm and blue is in the range of 450-475nm), the person would still create two piles of marbles, the higher wavelength one (indicating red) and the lower wavelength one (indicating blue).
If you had ten marbles 3 blue and 7 red and you picked out three marbles at the same time what would be the odds of picking 2 blue marbles?
1 in 5.45 of picking at least 2 blue marbles any 2 from 3 is 3 correct picks =3X7(red)=21 of 2 blue only 1 pick of 3 blue only any 3 from 10=120 120/22=5.45
