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rfieldgrove8512
06.08.2019 •
Mathematics
Each of two generators produces energy at a constant rate, but the two rates are different. one of the generators produces n units of energy in 4 hours, and the other generator produces the same amount of energy in half the time. what fraction of n units of energy will be produced by both generators if they work simultaneously for 40 minutes?
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Ответ:
The amount of energy generate by the generators if they work simultaneously for 40 minutes is 1/2.
Step-by-step explanation:
Consider the provided information.
One of the generators produces n units of energy in 4 hours, and the other generator produces the same amount of energy in half the time.
Let the total hours = n
The first generator produces energy in 1 hr = n/4
The first generator produces energy in 1 hr = n/2
Total energy is:
Total time taken is 40 mins. Now convert 40 minutes into hours:
40/60 = 2/3 hr
Now to find the amount of energy generate by the generators if they work simultaneously for 40 minutes is:
Hence, the amount of energy generate by the generators if they work simultaneously for 40 minutes is 1/2.
Ответ:
Angles 5 and 8 are opposite vertical angles, which are always congruent (equal), so angles 5 and 8 both equal 119°.
119° (angle 5) + 119° (angle 8)= 238°
ANSWER: The two angles total 238° (bottom choice).
Hope this helps! :)