A researcher has noted that the repair times of a sample of 15 new lawn mowers has a standard deviation of 4 minutes. A 95% conf
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Given:
Length of cloth = 9 yards
Length of pieces = yards each
To find:
The number of pieces of cloths after cutting.
Solution:
Let n be the number of required pieces.
Length of each piece is yards. So, the length of n pieces is
yards.
The length of the whole cloth is 9 yards. So, yards must be equal to 9 yards.
Multiply both sides by 3.
Therefore, the Greata have 27 pieces of cloths.