3105
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Q: what percent of 45 is 72? 72/45=x/100 45*100=4500 72x=4500 4500 divided by 72=62.5 x=62.5 A: 62.5%
The answer is 3. 69/X=23 69/23=X=3
x=11+69/2 and x=11-69/2
The additive inverse of x is -(x), so the additive inverse of -45 is -(-45), or 45.
This is the existence of additive inverse: For every number, x, there exists a number, denoted by (-x), such that x + (-x) = (-x) + x = 0.