Homework Help: algebra

Posted by KATIE on Tuesday, January 11, 2011 at 7:36pm.

if a student has an average of 8 after 20 tests and then gets a 0 on his 21st test, what would his new average be?

algebra - Ms. Sue, Tuesday, January 11, 2011 at 7:40pm
8 * 20 = 160

160/21 = ?
algebra - helper, Tuesday, January 11, 2011 at 7:42pm
x = total score of tests

x/20 = 8
x = 160

160/21 = 7.62 new average
algebra - KATIE, Tuesday, January 11, 2011 at 7:51pm
thank you.

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