Bobby has a bag containing 2 sizes of marbles. The big ones weigh 6 g and the small ones weigh 4 g. If there are an equal number of small ones and big ones and the bag weighs 220 g, how many big marbles does he have?

Question

anonymous · Answer

20

Do u need working??

anonymous · Answer

let the number of balls of each size be n.
so u hav n*6+n*4=220 and so u get n=22...therefore the number of big marbles is 22.

anonymous · Answer

tks for the GOOD ANSWER and for becoming a fan !!!!

anonymous · Answer

@ silverstravin

brackett is correct, i took the total as 200 instead of 220!! My mistake....

anonymous · Answer

hey man I have like 9 questions left on this  70 question assignment could you help me with them?

anonymous · Answer

go ahead....

anonymous · Answer

A solution of 74% alcohol is to be mixed with a solution of 27% alcohol to form 282 L of a 54% solution. How many liters of the 74% solution must be used?