mark has 48 marbles.5/12 of them are blue and 1/2 of them are yellow.how many more yellow marbles than blue marbles does he have?
my answer is 8,am i right.if not how.
Yellow: 1/2*48=24
Blue: 5/12 *48=20
How did you get 8?
first find out exactly how much of each you have with simply ratio cross multiplication
(x/48)=((5/12)
240= 12x divide by 12
gives you x = 20 (x is blue marbles)
(1/2)= (y/48)
2y= 48
y= 24 so he has 4 more yellows
To calculate the number of yellow marbles, we need to find 1/2 of the total number of marbles that Mark has.
1/2 * 48 = 24
Therefore, Mark has 24 yellow marbles.
To calculate the number of blue marbles, we need to find 5/12 of the total number of marbles that Mark has.
First, we calculate 1/12 of the total number of marbles:
1/12 * 48 = 4
Then, we multiply by 5 to find 5/12:
5 * 4 = 20
Therefore, Mark has 20 blue marbles.
To find the difference between the number of yellow and blue marbles, we subtract the number of blue marbles from the number of yellow marbles:
24 - 20 = 4
Therefore, Mark has 4 more yellow marbles than blue marbles.
So, your answer of 8 is incorrect. The correct answer is 4.