Answer:
my x is ;
x= -0.6205
this is because for the first equation to be equal to the second equation we need to multiply the second equation with 20
See below
Step-by-step explanation:
Grade is slope = rise / run
a) horizontal distance 1400 ft (run) vertical distance = 40 ft (rise)
40 / 1400 = 2.85%
b) rise / run = 805.58 / 13780 = 5.84%
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