A. 63.23
That is the answer because you would add all the times together (57.38+60.92+58.47=176.77) then subtract that from 4 minutes (240 seconds) (240-176.77=63.23)
Answer:
C. 
Step-by-step explanation:
We have been given a ratio 16:200 and we are asked to find the ratio as a fraction in simplified form.
Since ratio compares two numbers or two quantities that are measured with the same unit.
Upon converting our ratio into fraction we will get,

Let us cancel out greatest common factor from numerator and denominator of our fraction to simplify it.

After cancelling out 8 we will get,

Therefore, our fraction simplifies to
and option C is the correct choice.
40x + 120= 400
40x= 280
X=7
It took 7 hours to repair.
H+12=-12H
12=-13H
12/-13=H
Hope this helps
Answer:
f^-1(x) = 8x/(3-x)
Step-by-step explanation:
y = 3x/(8+x)
x = 3y/(8+y)
x(8+y) = 3y
8x + xy = 3y
8x = 3y - xy
8x = y(3-x)
8x/(3-x) = y