For problems such as this, it can be handy to remember that
.. 1/(1/a +1/b) = ab/(a +b)
The time required to do a job is the inverse of the rate at which the job is done. Rates are added when people work together (in math problems, not in real life).
(2:44)*(3:14)/(2:44 +3:14) = 1:28:52.3
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2:44 = 41/15 hours = 82/30 hours
3:14 = 97/30 hours
Using the formula above, we have a "working together" time of
.. (82/30)*(97/30)/(82/30 +97/30) = 82*97/(30*179) = 3977/2685 . . . hours
.. = 1 hour 28 156/179 minutes
.. = 1 hour 28 minutes 52 52/179 seconds
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Learn to use the fraction functions on your calculator. They can be very helpful.
Answer: $178.13
Step-by-step explanation:
418x0.16=66.88
22.25x5=111.25
111.25+66.88=178.13
Answer: Question 1 - 15 ft is how it travels. Question 2 - 95 miles is what it travels.
Step-by-step explanation: Question 1 - 15 ft is how it travels, it goes really slow and then fast.
Question 2 - 95 miles is what it travels because you got the short hand, the hour hand, the long hand, the minute hand. It goes really slow and then really fast.
What do you mean this question dosent make any sence
Jenna gets paid a total of 10.97 cents an hour<span />
