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#### bergausstein

##### Active member

- Jul 30, 2013

- 191

a.) the excess of the square of a number over twice the number.

b.) the amount by which five times a certain number exceeds 40

it seems that "exceed" has a different meaning here.

2. Mary is 18, she is twice as old as Anne was, when Mary was as old as Anne is. How old is Anne?

let x = age of anne

2x = age of mary

now i can't continue...please help