6.5 Applying Averages Obj: To calculate average and solve problems with average Find Average = Sum # of items.

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Presentation transcript:

6.5 Applying Averages Obj: To calculate average and solve problems with average Find Average = Sum # of items

Example 1 Find the average: 95, 95, 95, /360 = 90% 95 4/360 = 90%

Midpoints A ____________ B ½ way or midpoint Midpoint= A+B 2 Because you have 2 points.

Example 2 Find the midpoint Midpoint = 8 = 4 2

Example 3 Cody wants a 90 for the marking period. If his grades are 75, 85 and 100- what must he get on the 4 th test? Cody wants a 90 for the marking period. If his grades are 75, 85 and 100- what must he get on the 4 th test? Let X = 4 th Test Let X = 4 th Test Average= Sum Number 4 [ 90= X] 4 Number 4 [ 90= X] =260X 360=260X = 260+X 90x4 4 X=100