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OpenStudy (anonymous):
Find the number of revolutions made by a wheel with a radius of 14 cm that traveled 628 cm. Use 3.14 for p. Round your answer to the nearest tenth of a revolution.
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OpenStudy (saifoo.khan):
find the circumfrence 1st.
OpenStudy (saifoo.khan):
C = 87.96 = 88
OpenStudy (saifoo.khan):
finally 628/88 = 7.13
OpenStudy (saifoo.khan):
therefore 7 rev
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