Question

Varible c is 5 more than variable a. Variable c is also 3 less than variable a. Which pair of equations best models the relationship between c and a?A: c = a - 5 c = a + 3B: a = c + 5 a = 3c - 3C: a = c - 5 a = 3c + 3D: c = a + 5 c a - 3

Answer 1

Variable c is 5 more than variable a can be written like this:

$c=a+5$

and variable c is 3 less than variable a can be written like this:

$a=c-3$

therefore, the pair of equations that best models the relationship between c and a is D