Answer: 118.75
Step-by-step explanation: Add up all numbers first
(4 + 3.5+ 5 + 2 + 4.5) = 19 hours
then multiply 19 by 6.25
to get 118.75
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Answer:
![[3, 4]](https://tex.z-dn.net/?f=%5B3%2C%204%5D)
Step-by-step explanation:
{5x + 2y = 23
{13x + 3y = 51
−5⁄13[13x + 3y = 51]
{5x + 2y = 23
{−5x - 1 2⁄13y = 19 8⁄13 >> New Equation
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11⁄13y = 3 5⁄13
_____ ______
11⁄13 11⁄13
[Plug this back into both equations above to get the x-coordinate of 3]; 
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Answer:
The earth will revolve 15° and 0.0833 radian in 1 hour
Step-by-step explanation:
We know that earth revolve one round on its axis 24 hour
We know that 1 round = 360°
So earth will revolve 360° in 24 hour
So earth will revolve
in 1 hour
Now we have to find the revolution in radian
So 
The difference between the means is about 5 times
Yes if they relate to one another using an = sign