Posted by **phil** on Sunday, October 30, 2011 at 9:54pm.

every yellow marble is expensive.one -half the orange marbles are expensive.one -half of all expensive marbles are yellow. there are 40 yellow marbles and 25 expensive marbles that are niether yellow nor orange. how many orange marbles are there?

- homework -
**Steve**, Monday, October 31, 2011 at 12:31pm
if every yellow is expensive, there are 40 expensive marbles that are yellow

half the expensives are yellow, meaning there are 80 expensive marbles in all.

That means there are 40 expensives that are not yellow.

there are 25 expensives that are not orange (or yellow). There are 40 non-yellow expensives.

So, there are 15 expensive orange marbles, and that's half of all the oranges.

There are 30 orange marbles.

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**Anonymous**, Saturday, October 20, 2012 at 5:20pm
x is defined as one more than the number of digit in the number x. For example , 1000=5. For what value cua x will x = x .

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**Unknown**, Tuesday, January 7, 2014 at 5:31pm
People should not have this question .someone give me answers

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