If y is proprtional to x, then y = kx
In this case, the initial $50 ruins the proportionality, since
s = 50 + kw
where k is the amount of the weekly deposit.
Determine if two variables are directly proportional. if so, write the equation of variation.
The total amount tucked away in a piggy bank (s) and weekly savings (w), starting with an initial balance of $50.
1 answer
2 answers