Question

John's age is 9 more than three times Rick's age. Which expression represents this?

Answer 1

Answer:

y = 9 +  3x .

Step-by-step explanation:

Given  : John's age is 9 more than three times Rick's age.

To find : Which expression represents this.

Solution : We have given John's age is 9 more than three times Rick's age.

Let the age Rick = x

According to question :

3 times the age of Rick = 3x .

Let the John age = y .

y = 9 +  3x . (  plus sign for more than ).

Therefore , y = 9 +  3x .

Answer 2

Let's represent john with the variable ( j ) and rick with ( r ):

j = 3r + 9