Asked by help

A wheel makes 2 8/9
revolutions per minute. If it rotates for 30 ​minutes, how many revolutions does it​ make? please help. i really don't know.
Answered by Bosnian
2 = 18 / 9 so:

2 8/9 = 2 + 8 / 9 =

18 / 9 + 8 / 9 = 26 / 9

2 8/9 revolutions per min • 30 min =

2 8/9 • 30 = 26 / 9 • 30 =

780 / 9 = 3 • 260 / 3 • 3 =

260 / 3 = ( 258 + 2 ) / 3 =

258 / 3 + 2 / 3 = 86 + 2 / 3 = 86 2/3
Answered by Bosnian
Wheel makes 86 2/3 revolutions.
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