1.3 Graded Assignment

r = -5r + 18

• 3
• -3
• 4.5
• -4.5

1.8 + 7n = 9.5 - 4n

• -4
• 7/10
• -7/10
• 4/5

3y – 4 = 2y + 1

• 1
• -3
• -5
• 5

John has $120 in his savings account and Leah has $180 in her account. Each week John adds $14 to his account and Leah adds $10 to hers. How many weeks will it be before John and Leah have the same amount of money saved up?
*Write a let statement to define the unknown amount.

• Let x = the number of weeks
• Let x = the amount of money that John and Leah have in their accounts
• Let x = the number of weeks before John and Leah have the same amount of money
• Let x = the amount of money

John has $120 in his savings account and Leah has $180 in her account. Each week John adds $14 to his account and Leah adds $10 to hers. How many weeks will it be before John and Leah have the same amount of money saved up?
*Write an equation that models the situation.

• 14x + 120 = 10x + 180
• 14x + 180 = 10x + 120
• 120x + 14 = 180x + 10
• 120x + 10 = 180x + 14

John has $120 in his savings account and Leah has $180 in her account. Each week John adds $14 to his account and Leah adds $10 to hers. How many weeks will it be before John and Leah have the same amount of money saved up?
*Solve the equation and write your final answer in a complete sentene.

• x = 10 
  It will be 10 weeks until the accounts have the same amount of money.
• x = 15
  It will be 15 weeks until the accounts have the same amount of money.
• x = -15
  It will be -15 weeks until the accounts have the same amount of money.
• x = -10
  It will be -10 weeks until the accounts have the same amount of money.