Posted by sandra on Thursday, October 27, 2011 at 4:04pm.
hector music teacher requires 450 min of practice each month. Hector practiced 239 min the first three weeks this month. Estimate how many minutes he has left to practice.

math  Ms. Sue, Thursday, October 27, 2011 at 4:43pm
450  240 =

math  sandra, Thursday, October 27, 2011 at 4:54pm
THANK YOU

math  Ms. Sue, Thursday, October 27, 2011 at 5:01pm
You're welcome.

math  Anonymous, Tuesday, January 3, 2012 at 5:26pm
450240=210minutes
So Hector needs to practice for 210 minutes or 3 hours and 30 minutes to be exact