Posted by a on Sunday, February 27, 2011 at 9:06pm.
i gave away 20 marbles leaving 60%, how many marbles did i have

math  Ms. Sue, Sunday, February 27, 2011 at 9:15pm
0.4x = 20
x = 20/0.4
x = 50
Posted by a on Sunday, February 27, 2011 at 9:06pm.
i gave away 20 marbles leaving 60%, how many marbles did i have
0.4x = 20
x = 20/0.4
x = 50