1,680 divided by 400 = 4.2
So we know that Xian has done 4.2 laps.
4.2 divided by 14 = 0.3
0.3 x 100 = 30%
Therefore, Xian has finished 30% of the run
Answer:
x = -14
Step-by-step explanation:
y = 3x
x = 2y +70
(replace)
x = 2(3x) + 70
(simplify)
x = 6x + 70
-5x = 70
x = -14
Please elaborate more on your question so I can help you
