Answer: 15.2
Step-by-step explanation:
(14)^2 + (6)^2 = c^2
196 + 36 = c^2
232 = c^2
Square root both sides
15.231546 = c
15.2 ≈ c
<em>Answer:</em>
<em>X = 9</em>
<em>Step-by-step explanation:</em>
<em>X + 12 = 4X - 15</em>
<em>12 + 15 = 4X - X</em>
<em>3X = 27</em>
<em>X = 27 : 3</em>
<em>X = 9</em>
Answer:
Step-by-step explanation:
Let's call the ages D for daughter and S for son.
We know that the son is twice as old as the daughter, so:
S = 2D
We also know that in 15 years, their ages add up to 100, so:
(40+15) + (S+15) + (D+15) = 100
55 + S + 15 + D + 15 = 100
85 + S + D = 100
S + D = 15
Substituting the first equation:
2D + D = 15
3D = 15
D = 5
Therefore:
S = 2D = 10
The son is 10 and the daughter is 5.
Answer:
The lines are parallel because they have the same slope(5x)
3
idk
a
idk
d
im sorry i dint know some of them but i hope this helps
