Answer:
14.5°
Step-by-step explanation:
length of ramp, l = 20 foot
height of ramp, h = 5 foot
Let θ is the angle of inclination
Sin θ = h/l
Sin θ = 5 / 20
Sin θ = 0.25
θ = 14.5°
Thus, the inclination of ramp is 14.5°.
120 bricks = 10 kg
120 bricks × 10 kg = 1200 kg
1200 kg + 9000 kg = 10200 kg
the variable
Common difference is 4
25 , 29, 33,37,41