Posted by Click6 on Saturday, June 18, 2011 at 1:00pm.
Mr lol bought x oranges for $30 and sold them at a profit of 5cents per orange. Write down the (i)cost price of an orange.
(ii)the selling price of an orange
When he had sold all except 20 of the oranges, he found he had received $28.
(iii) form an equation in x and show that it simplifies to xsquare + 20x 12000= 0

Math algebra (urgent!) help me! Thanks a lot!! (;  Raymond, Saturday, June 18, 2011 at 3:57pm
Click6, I can give you an intuitive answer but not a mathematical one.
My intuitive answer is there are 100 oranges bought in this problem. Thus each orange cost .30 or 100*.30=$30 The sellng price per orange is .35 or 5 cents more than the cost. 80 sold oranges times .35 equals $28 which fits with the stated parameters of your problem.

Math algebra (urgent!) help me! Thanks a lot!! (;  Henry, Saturday, June 18, 2011 at 4:53pm
Check your 61811, 12:51am post for
solution.

Math algebra (urgent!) help me! Thanks a lot!! (;  Michael, Tuesday, May 15, 2012 at 8:03pm
what is the radicle of 150
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