Kendra’s age is half the age of Justin. Kendra is 13 years old. Which of the following equations represents Justin’s age, a

?(1 point)
Responses

12a = 13
Start Fraction 1 over 2 End Fraction a equals 13

2a = 13
2 a equals 13

a + 12 = 13
a plus Start Fraction 1 over 2 End Fraction equals 13

13a = 2

1 answer

To find Justin's age, we start with the information given: Kendra’s age is half the age of Justin, and Kendra is 13 years old.

We can set up the equation based on the relationship between their ages:

  1. Let \( a \) be Justin's age.
  2. According to the problem, Kendra's age (13) is half of Justin's age, so we can write the equation as: \[ 13 = \frac{1}{2} a \]

To isolate \( a \), you can multiply both sides by 2: \[ 2 \times 13 = a \] \[ 26 = a \]

So, Justin's age is 26.

The correct equation that represents Justin's age \( a \) based on the information given is: \[ \frac{1}{2} a = 13 \]

Thus, the correct response is: Start Fraction 1 over 2 End Fraction a equals 13.