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Hitman42 [59]
3 years ago
13

easy car rental charges $40 a day plus $.25 per mile race. rent a car charges $25 a day plus $.45 per mile. what number of miles

results in the same cost for one day?
Mathematics
1 answer:
DiKsa [7]3 years ago
6 0
A: cost= 3*55+.35m
B: cost=3*50+.40m

set the costs equal, and solve for m.
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The fastest train on earth is Maglev, a Japanese train which runs at a
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167.2 m/sec

Step-by-step explanation:

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bagirrra123 [75]
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Read 2 more answers
Find four geometric means between 25 and 800.
SVEN [57.7K]

Actually, you have to find four missed terms of geometrical sequence. Denote

a_1=25,\\ a_6=800

and r - ratio, then

a_2=a_1\cdot r=25r,\\a_3=a_1\cdot r^2=25r^2,\\a_4=a_1\cdot r^3=25r^3,\\a_5=a_1\cdot r^4=25r^4,\\a_6=a_1\cdot r^5=25r^5.

Since a_6=800, you have that 800=25r^5, then

r^5=\dfrac{800}{25} =32,\\r=2.

Now substitude r=2 in each of unknown 4 terms:

a_2=25\cdot 2=50,\\a_3=25\cdot 2^2=100,\\a_4=25\cdot 2^3=200,\\a_5=25\cdot 2^4=400.

Answer: four geometric means between 25 and 800 are 50, 100, 200, 400.

8 0
3 years ago
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