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 nonyellow expensives.
So, there are 15 expensive orange marbles, and that's half of all the oranges.
There are 30 orange marbles.

homework  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 .

homework  Unknown, Tuesday, January 7, 2014 at 5:31pm
People should not have this question .someone give me answers
Answer This Question
Related Questions
 Statistics  A bag contains 5 purple marbles, 7 yellow marbles, and 3 orange ...
 Math  A bag contains 3 red marbles, 5 yellow marbles and 6 orange marbles. ...
 Math  Bobby has a bag of marbles with nine red marbles, 13 yellow marbles and ...
 Math  A bag contains 3 red marbles, 5 yellow marbles and 6 orange marbles. ...
 GEOMETRY  A bag contains 3 yellow marbles, 4 green marbles, 6 purple marbles, ...
 Discrete Math  A bag contains 5 red marbles, 4 yellow marbles, 3 green marbles...
 Math  a bag contains 3 red marbles, 5 blue marbles, 2 yellow marbles, and 2 ...
 Math  There are 150 green marbles and 100 yellow marbles in a bag that contains...
 math  A bag holds 8 yellow marbles and 5 orange marbles.How many and what color...
 Math  A bag holds 8 yellow marbles and 5 orange marbles. How many and what ...
More Related Questions