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Dovator [93]
4 years ago
9

A duck's mass at birth was 0.05 kilogram. The duck gained approximately 0.042 kilogram each week. After how many weeks is the du

ck's mass 0.890 kilogram?
Mathematics
1 answer:
storchak [24]4 years ago
5 0
F (x) = 0.05 + 0.042x

0.890 = 0.05 + 0.042x

0.840 = 0.042x

x = 20 weeks

check your answer

0.890 = 0.05 + 0.042(20)
0.890 = 0.05 + 0.84
0.890 = 0.890
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