To get the answer we can use proportion 10 large ------------- 14 small x large -------------- 35 small crossmultiply 10*35=x*14 350=14x /:14 350:14=14x:14 25=x-its the answer
10 is 14 marbles so 5 is 7 marbles now 10 is 14 marbles 20 is 28 marbles we got how many is 28 marbles we know 7 marbles is 5 we need more tahn 7 7 marbles is 5 we have 20 25 is 35 marbles answer is 25
