Take the 2 times you are given and add them to x and divide the entire left side of the equation by 3:
54.3+56.1+x/3=55
54.3+56.1+x=165
x=54.6
The 3rd lap took him 54.6 seconds to run
The answer on top of me is correct
Hey there!
Here is the equation graphed. (photo)
Hope this helped!
Answer:
−13x+18
Step-by-step explanation:
=−4x+(−9)(x)+(−9)(−2)
=−4x+−9x+18
Combine Like Terms:
=−4x+−9x+18
=(−4x+−9x)+(18)
=−13x+18
D = sqrt (x2 - x1)^2 + (y2 - y1)^2
(1,-2)(10.-4)
d = sqrt (10 - 1)^2 + (-4 - (-2)^2
d = sqrt (9^2 + (-4 + 2)^2
d = sqrt (9^2 + (-2^2)
d = sqrt (81 + 4)
d = sqrt 85
d = 9.2