Question

Brandon is 9 years older than ronda. In four years,the sum of their ages will be 91. How old are they now?

Answer 1

Step-by-step explanation:

let ronda's present age be x

therefore, brandon's present age will be (x+9)

In four years time,

(brandon's age after 4 years + Ronda's age after 4 years ) = 91

Hence; (x+4) + ( (x+9) + 4) = 91

x + 4 + x + 4 + 9 = 91

2x + 17 = 91

2x = 74

x = 37

therefore; Ronda's present age = x = 37

and Brandon's present age = x + 9 = 37 +9 = 46

Answer 2

Answer:

Brandon is 46 years old and Ronda is 37 years old.

Step-by-step explanation:

solution ,

Let , the present age of Brandon be x and Ronda be y.

By the question,

x = y + 9 .....1

( x + 4 ) + ( y + 4 ) = 91 .......2

So putting the value of x from....1 to .....2

y + 9 + 4 + y + 4 = 91

2y + 17 = 91

2y = 74

y = 37 years old

x = 37 + 9 = 46 years old

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