Question

The present age of Geetha is 1/3 of the present age of her mother. After 5 years, sum of their ages will be 46. Form a linear equation in one variable to find the present ages of Geetha and her mother. What are Geetha's and her mother's ages? 

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Answer 1

Answer:

Given :-

The present age of Geetha is 1/3 of the present age of her mother. After 5 years, sum of their ages will be 46

To Find :-

What are Geetha's and her mother's ages

Solution :-

Let the age of her mother be m

Age of Geetha = m/3

After 5 years

Age of mother = m + 5

Age of Geetha = m/3 + 5

m/3 + 5 + m + 5 = 46

m/3 + 5 + m + 5 = 46

m + 15 + 3m + 15/3 = 46

4m + 30/3 = 46

4m + 30 = 3(46)

4m + 30 = 138

4m = 138 - 30

4m = 108

m = 108/4

m = 27

Now

Age of Geetha = 1/3 × m

Age of Geetha = 1/3 × 27

Age of Geetha = 9 years

Step-by-step explanation:

Answer 2

Answer:

1. Heat is generated continuously in an electric heater, but its temperature becomes constant after some time. ... This is because a stage reaches when rate at which heat is generated by electric current becomes equal to the rate at which heat Is lost by radiation. Thermal equilibrium is reached.