Set it equal to each other. 3x-38+7x-95=47. 10x-133=47. 10x=180. X=18
Twelve men take 6 hours to finish a piece of work.
In 1 hour, the 12 men will finish 1/6 of the work
( 1 job ) / ( 6 hrs ) = ( 1/6 of a job ) / ( 1 hr )
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That means there is of the job
left to do.
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If 12 men take 6 hours to finish a piece of work,
1 man will take 12 times as long, to finish the work, so
( 1 job ) / ( 6*12 = 72 hrs ) = rate of working for 1 man, or
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After 1 hour, there are a total of men working
20 men will work 20 times as fast as 1 man on the
of a job that remains, so
Let = hours for the 20 men to finish the job
<span>-7 • (a4 - 81a2 - 162)27
-------------------------------- hope it helps
27</span>
Answer:
759.88 square inches
Step-by-step explanation:
Answer:
What was this for ?
Step-by-step explanation:
