Answer
$$ 52.3 \ kg$$
Work Step by Step
We know that 750 grams is equal to:
$$ =\frac{750\ grams}{1000 \ g/kg} \\ = .75 \ kg$$
Thus, her weight in kg is:
$$ = 57 \ k g- 4\ kg - .75 \ kg \\ = 52.3 \ kg$$
Basic College Mathematics (10th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0134467795
ISBN 13:
978-0-13446-779-5
Chapter 7 - Measurement - Review Exercises - Page 524: 49
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