-1 is the answer to your question
Answer:
12 years
Step-by-step explanation:
Represent the mother's age by m and the son's by 4. Currently m = 36 years old.
In x years the mother will be three times as old as her son:
mother: 36 + x years old
son: 4 + x years old
The pertinent equation to solve is:
36 + x = 3(4 + x)
Performing the multiplication, we get:
36 + x = 12 + 3x, or
24 = 2x. Then x = 12.
Check: In 12 years, will the mother's age be 3 times the son's age?
Does 36 + 12 = 3(4 + 12)?
Does 48 = 48? YES
The mother will be 3 times as old as her son in 12 years from now.
Answer:
(9,72)
Step-by-step explanation:
Since both equations equal y, set the equations equal to each other and solve for x.
8x=2x+54 Subtract 2x from both sides
6x= 54 Divide both sides by 6
x=9
Substitute x=9 into either equation and solve for y
y=8(9)
y=72
The melody used as the basis for “My country, ‘Tis of Thee” is God Save The King.
Answer:
20
Step-by-step explanation:
25 + 7x = 165
25 + 7(20) = 165
25 + 140 = 165
