david and jason have marbles in a ratio of 2:3. together they have a total of 35 marbles . how many marbles dose David have

14 marble

Step-by-step explanation:

here's your solution

=> Total number of marble = 35

=> ratio of David and Jason = 2 : 3

=> let the ratio be in x

=> now, 2x + 3x = 35

=> 5x = 35

=> x = 35/5

=> x = 7

=> number of marble with David = 7*2 = 14

=> number of marble with Jason = 7*3 = 21

hope it helps

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.