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July 28, 2014

July 28, 2014

Posted by **Jazmin** on Thursday, April 11, 2013 at 9:51pm.

Can someone explain step by step. Please

- Math -
**Knights**, Thursday, April 11, 2013 at 9:56pmFor average grade of 90, must all add up to the average times the amount of tests.

So, 90*5 = 450

x+ 93+ 82+91+88 = 450

x+(82+88) + (91+93) = 450

x + (170 + 184) = 450

x+ 354 = 450

x+4 + (350) = 450

x+4 = 100

x = 96

- Math -
**Jazmin**, Thursday, April 11, 2013 at 10:14pmThank you so much this is better than the way my teacher explained. :)

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