The Answer to your problem is:
0.8
Answer:
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Step-by-step explanation:
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Answer:
Jo's age = x = 8 years
Step-by-step explanation:
Let
Jo's age = x
Jo's mother, Anne's age = 4x
In four years time, Anne will be three times as old as Jo.
Jo's age =3( x + 4)
Jo's mother, Anne's age = 4x + 4
How old is Jo?
Equate Jo's age and his mother's age
3(x + 4) = 4x + 4
3x + 12 = 4x + 4
3x - 4x = 4 - 12
-x = - 8
Divide both sides by -1
x = 8
Therefore,
Jo's age = x = 8 years
You add 2x and 7x to get 9x
so the answer is 9x+5y
3/4 = x / 7.5
4x = 3(7.5)
4x = 22.5
x = 5.625
