S > less than or equal to 130
d < greater than or equal to $500
Step-by-step answer:
Answer to problems of this kind is the reciprocal of the harmonic mean of the time required.
We need to find the average of the speeds, not the average of the time.
The respective speeds are 1/3 and 1/4.
The average of the speeds is therefore (1/3+1/4)/2 = 7/24 (harmonic mean of the time taken).
The time required is therefore the reciprocal of the unit speed,
T = 1/(7/24) = 24/7 = 3 3/7 minutes, or approximately 3.43 minutes.
Answer:
Step-by-step explanation:
The formula for the area of rectangle is length times width:
Use FOIL method:
(12+1)+ (0/10)+(6/100)+(5/1000)=12.065
Hope this helps u!
Answer:
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Step-by-step explanation:
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