a wheel makes 9 3\10 revolutions per minute. if it rotates for 85 minutes . How many revolutions does make ?
9 3/10 = 93/10
85 min * 93/10 rev/min = 790.5 rev
To find the number of revolutions the wheel makes, you need to multiply the number of revolutions per minute by the total number of minutes the wheel rotates.
1) Calculate the number of revolutions per minute:
- The wheel makes 9 3\10 (or 9.3) revolutions per minute.
2) Calculate the total number of revolutions:
- Multiply the number of revolutions per minute (9.3) by the total number of minutes the wheel rotates (85).
- 9.3 revolutions/minute * 85 minutes = 790.5 revolutions.
Therefore, the wheel makes approximately 790.5 revolutions.