SOLUTION: Petunia and Petal worked for 5 hours and completed 1(1/24) jobs. if Petal took 12 hours to do 1 job, how long did it take petunia to do 2 jobs?
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Question 66498This question is from textbook Advanced mathematics
: Petunia and Petal worked for 5 hours and completed 1(1/24) jobs. if Petal took 12 hours to do 1 job, how long did it take petunia to do 2 jobs? This question is from textbook Advanced mathematics
You can put this solution on YOUR website! Petunia and Petal worked for 5 hours and completed 1(1/24) jobs. if Petal took 12 hours to do 1 job, how long did it take petunia to do 2 jobs?
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Working together DATA:
Time = 5 hrs/[(25/24)job]; Rate= 1/5 [(25/24)job/hr]=(5/24)(j/h)
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Petal DATA:
Time=12 hrs/job ; Rate = (1/12) job/hr.
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Petunia DATA:
Time= x hrs/job ; Rate = (1/x)job/hr
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EQUATION:
rate + rate = rate together
(1/12)(j/h) + (1/x)(j/h) = (5/24)(j/h)
Multiply thru by 24x to get:
2x+24=5x
3x=24
x=8 hours for Petunia to do one job.
2x=16 hrs for Petunia to do two jobs.
Cheers,
Stan H>
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