Nick opens a savings account with $50.
Each week after, he deposits $15.
In how many weeks will he have saved $500?
Step 1: Underline any key information
Step 2: Write a let statement. What does our variable represent?
Step 3: Write an equation:
Step 4: Solve the equation:
Alrighty. To underline key information, I would underline the $15, the $50 and the $500.
Our variable represents the number of weeks it took Nick to reach $500.
It would be 15x+50=500.
Subtract both sides by 50: 15x=450.
Divide both sides by 15: x=30
Nick will have saved $500 in 30 weeks.