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30.12.2019 •
Mathematics
F1 /2 an apple was shared equally among the 3 people, what fraction of the whole apple did each person receive?
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Ответ:
Company A: y= 30x +15 Company B: y= 28x +21
Company B will be cheaper for cleaning 6 mattresses. y= 30 (6) +15 -> y= 180+15
y=195. B: y= 28(6) +21 -> y= 168+21 -> y= 189
C: $6 are saved for using company B.