Answer:
New computer will take 33.28 hours to complete the calculation by itself.
Step-by-step explanation:
Let the time taken by the new computer to complete the calculation = x hours
Per hours work done by the new computer = 
Time taken by the older computer to complete the calculation = (x + 11) hour
Per hour work done by old computer = 
When both the computers work together they complete the work in 19 hours.
Therefore, per hour work done by both together = 
We per hour work done by both individually = per hour work done by both together
38x + 209 = x² + 11x
x² - 27x - 209 = 0
By quadratic formula,
x = 
x = 
x = 
x = 
x = 33.28 hours
Therefore, new computer will take 33.28 hours to complete the calculation by itself.
Answer:
Piecewise functions (or piece-wise functions) are just what they are named: pieces of different functions (sub-functions) all on one graph. The easiest way to think of them is if you drew more than one function on a graph, and you just erased parts of the functions where they aren’t supposed to be (along the ’s); they are defined differently for different intervals of . So is defined differently for different values of ; we use the to look up what interval it’s in, so we can find out what the is supposed to be. Note that there is an e…
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Step-by-step explanation:
Answer:
4000
Step-by-step explanation:
Because 358 is closer to zero than a thousand so you make it 4000
4x + (-3) = 8
(Hopefully)
As for the second one, I ASSUMED it would be this but I'm kinda busy and my ADHD brain just needed a break from what I was doing so just equate it for me, will you? And tell me if I was right or wrong because I have NO IDEA what I'm doing.
Let the number of days he trains for be x
So, 115x = 690
