Answer:
c= ℝ
Step-by-step explanation:
8(c-9)=6(2c-12)-4c
Distribute left side.
8*c+8*-9=6(2c-12)-4c
8c-72=6(2c-12)-4c
Distribte right side.
8c-72=6*2c+6*-12-4c
8c-72=12c-72-4c
Combine like terms.
8c-72=8c-72
Since the two sides are exactly the same, this means that any number for c will satisfy the equation.
Therefore, c= ℝ (all real numbers)
Answer is (45-25s^2)/(9s^2+6s-45)
Answer:
20 i think
Step-by-step explanation:
angle 1 = 180-110 = 70 degrees (linnear pair)
angle 2= 180-115 = 65 degrees (linnear pair)
angle 3 = angle 2 = 65 degrees (corresponding angles)
angle 4= 180 - angle 3 = 180-65 = 115 degrees (linnear pair)
(your teacher might not like this, depends on the cituation, but use 180 degrees in triangle to get 7)
angle 7 = 180 -angle1 -angle 2= 180-70-65= 45 degrees
angle 6 = angle 7 = 45 degrees ( vertical angles)
angle 8= 180- angle 7= 180-45 = 135 ( linnear pair)
angle 9 =angle 6 = 45 degrees (corresponding angles)
angle 5=angle 9=45 degrees (vertical angles)
Answer:
3.75 hours
Step-by-step explanation:
Total time needed
5 * 6 = 30 hours
with 8 people
30/8 = 3.75 hours
