SOLUTION: Write and solve an equation (use x for the variable) for the following situation: A bank account starts with $500. Each week you deposit an additional $25. Write and solve an

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Write and solve an equation (use x for the variable) for the following situation: A bank account starts with $500. Each week you deposit an additional $25. Write and solve an      Log On


   

Question 991589: Write and solve an equation (use x for the variable)
for the following situation:
A bank account starts with $500. Each week you
deposit an additional $25. Write and solve an equation
you could use to solve the number of weeks it would
take to have a total of $675 in the bank account.
Answer by MathLover1(20855) About Me  (Show Source):
You can put this solution on YOUR website!

use linear equation:
y=mx%2Bb
if a bank account starts with $500, then b=500
let's the number of weeks be x, and if each week you deposit an additional $25, then m=25
so, your equation will be: y=25x%2B500
to find the number of weeks it would take to have a total of $675 in the bank account, substitute 675 for y and solve for x:
675=25x%2B500
675-500=25x
175=25x
x=175%2F25
x=7
so, it will take 7 weeks to have a total of $675 in the bank account