SOLUTION: 1) A=1/2h(a+b)for a 2)what is 16% of 90?

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Question 70962: 1) A=1/2h(a+b)for a 2)what is 16% of 90?
Answer by checkley75(3666) About Me  (Show Source):
You can put this solution on YOUR website!
A=1/2H(a+b) CROSS MULTIPLY
2A=H(a+b) EXPAND THE () TERM
aH+bH=2A SIBTRACT bH FROM BOTH SIDES
aH=2A-bH DIVIDE BIOTH SIDES BY H
a=(2A-bH)/H ANSWER