Question

Gigi's sister is 7 years less than twice Gigi's age. The sum of Gigi's age and her sister's age is 41. Which equation represents this relationship?

A) a + (7 - 2a) = 41
B) a + (2a - 7) = 41
C) 2a - 7 = 41
D) a = 2a - 7

Answer 1

B) a + (2a - 7) = 41

The equation that represents the relationship between Gigi's age and her sister's age is a + (2a - 7) = 41

Step-by-step explanation:

The correct equation that represents the relationship between Gigi's age and her sister's age is option B) a + (2a - 7) = 41.

To solve this problem, we can start by assigning a variable to represent Gigi's age. Let's say a = Gigi's age. Then, her sister's age can be represented as 2a - 7 (7 years less than twice Gigi's age).

Finally, we can set up the equation: Gigi's age (a) + her sister's age (2a - 7) = 41. This translates to: a + (2a - 7) = 41.