SOLUTION: Mr jacob is 55 years old and tony is 7 years old. in how many yearswill mr jacob be 4 times as old as tony

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Question 896320: Mr jacob is 55 years old and tony is 7 years old. in how many yearswill mr jacob be 4 times as old as tony
Found 2 solutions by thesvw, MathTherapy:
Answer by thesvw(77) (Show Source):
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Let Jacobs age be 'J' years when Tony's age is as 4 times as Jacobs. Let Tony's age be 'T'.
J = 4T
The difference between Jacobs and Tonys ages doesn't change. (55 -7= 48)
J - T = 48
J = 48 + T
J = 4T
48 + T = 4T
48 = 3T
48/3 = T
T = 16
Now Tony is 7. In 9 years.. It will happen.

Answer by MathTherapy(10552) (Show Source):
You can put this solution on YOUR website!

Mr jacob is 55 years old and tony is 7 years old. in how many yearswill mr jacob be 4 times as old as tony

Let time it'll take for Mr. Jacob to quadruple Tony's age, be Y
Then: 55 + Y = 4(7 + Y)
55 + Y = 28 + 4Y
Y - 4Y = 28 - 55
- 3Y = - 27
Y, or number of years = , or