Today we practiced going back and forth between English and Mathematical Symbols.
The sum of three consecutive numbers beginning with x
x + (x+1) + (x+2)
The average of 3, 5, 9, and a number z
(3 + 5 + 9 + z) / 4
(the slash represents division)
HW - p 399 # 7-23 Odd only
#25-33
For example #33
-1 = t
3
Multiply each side by 3
-1 x 3 = t x 3
3
-3 = t
Check your answer - Is -1 = t/3? Yes!
