A 120 pound student playing volleyball burns 2.7 calories per minute. If the student plays for 30 minutes, (1) how many calories
2 answers:
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Answer:
It takes the second worker 11 hours to do the job alone
Step-by-step explanation:
The problem tells you how to work it.
x = 11 tells you the second worker takes 11 hours to do the job alone.
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You can also work directly with the fractions. Subtract 1/11 and you have ...
1/x = 1/11
It should not be a real stretch to see that x=11. If you need, you can multiply both sides by 11x to get 11=x.
False, it's the other way around: you divide the numerator by the denominator.
For example, to evaluate you divide 8 by 15: