Sound can travel incredibly quickly: 1 mile in about 1/12
2 answers:
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Answer:
Son's age = 24 years
Man's age = 48 years
Step-by-step explanation:
Let's take the age of son as x
Man's age = 2x
Twelve years ago,
Son's age= x-12
Man's age= 2x-12
Man is three times as old as his son so,
Solving for x,
2x-12(1) = x-12(3)
2x-12 = 3x-36
2x-3x = -36+12
-x = - 24
x = 24
So if we substitute the values we get,
Son's age = 24 years
Man's age = 48 years
Hope you understand :)
Answer:
a = 4, b =
Step-by-step explanation:
Use any ordered pairs of points from the table.
Substitute into the equation and solve for a and b, that is
Using (0, 4), then
4 = a = a
Hence a = 4
Using (2, 1), then
1 = 4 ( divide both sides by 4 )
b² = ( take the square root of both sides )
b =
Equation is
y = 4