If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.
12 blue marbles
This problem doesn't lead to a whole number solution. Are you sure you copied it correctly? Maybe you meant the ratio is 4 to 3. In that case: red/blue = 4/3 blue/red = 3/4 blue = (3 * red) / 4 = (3 * 16) / 4 = 12 blue marbles
8:6
Since the box contains 16 marbles, seven of them white, then the probability of drawing one white marble is 7/16. If you replace the marble and draw again, the probability of drawing another white marble is still 7/16. The net probability of drawing two white marbles, while replacing the first, is 49/256.
Probability of not blue is the probability of white. The probability of white is 11/(11+21) or 11/32.
9:10
12 blue marbles
12 blue marbles
24
24 red marbles
a bag contains 150 marbles some of the marbles are blue and the rest of the marbles are white in the bag there are 21 blue marbles for every 4 white marbles how many of each color marble blue and white are in the bag show or explain your thinking
The ratio of 4 blue marbles to 6 white marbles can be said as 4:6, 4 to 6, or 4/6. This can then be simplified to 2:3 by a factor of 2.
There is a probability of 3 that it will be blue.
Four. The answer will be 12 to 6 which reduced is 2 to 1.
This problem doesn't lead to a whole number solution. Are you sure you copied it correctly? Maybe you meant the ratio is 4 to 3. In that case: red/blue = 4/3 blue/red = 3/4 blue = (3 * red) / 4 = (3 * 16) / 4 = 12 blue marbles
12
it means a number verses another number, like a fraction Here;s an example you have 10 white marbles, 3 blue marbles, and 7 green marbles. what is the ratio of green marbles to the total amount of marbles? hat you do is look at the green marbles, and in this case, there are 7. Now add up all the marbles, which is 20. Your ratio is then 7:20.