Question

Sally has $400.00 in her savings account. She adds $25 to it every month and does not make any withdrawals. Write an equation to represent this situation.

How much money will Sally have in her account after a year?
a) $700
b) $625
c) $300
d) $1,000

Answer 1

To represent the situation, the equation is y = 400 + 25x. After a year, Sally will have $700 in her account.

Step-by-step explanation:

To write an equation to represent this situation, we need to consider that Sally adds $25 to her savings account every month without making any withdrawals. Let's use the variable 'x' to represent the number of months and 'y' to represent the amount of money in Sally's account. Since Sally starts with $400 and adds $25 every month, the equation can be written as y = 400 + 25x. This equation will represent the amount of money Sally has in her account after any number of months.

To find out how much money Sally will have in her account after a year (12 months), we substitute 'x' with 12 in the equation: y = 400 + 25(12). Evaluating the expression gives us y = 400 + 300 = 700. Therefore, Sally will have $700 in her account after a year.