Question

Question

Marco has $100 in a saving account. He puts in an additional $15 per week. Write an equation to represent the total amount in Marco's account after each week.
Responses

y= -15x+100
y= -15x+100

y= 15x+100
y= 15x+100

y=100x+15
y=100x+15

y= -100x+15
y= -100x+15

Answer 1

To create an equation that represents the total amount in Marco's account after each week, we need to consider his initial amount and the additional amount he adds weekly.

Marco starts with $100. Each week, he adds $15.

If we let \( x \) represent the number of weeks, then the total amount \( y \) in his account after \( x \) weeks can be represented by the equation:

\[ y = 15x + 100 \]

So, the correct response is:

y = 15x + 100