Question 1144144
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Let G = number of girls
then the total number of babies born was G + 34, and we are given 54% (0.54) of that total is 34:

0.54(G + 34) = 34

Divide both sides by 0.54:
G+34 = (34/0.54)

Subtract 34 from each side:
G = (34/0.54) - 34 = 29     (after rounding)

Check:
34/ (34+29) = 34/63 = (approx) 0.5396 or 54% when rounded.