Grade 7 | Unit 5 | Lesson 4: Money and Debts | Practice Problems

The table shows five transactions and the resulting account balance in a bank account, except some numbers are missing. Fill in the missing numbers.

Clare has $54 in her bank account. A store credits her account with a $10 refund. How much does she now have in the bank?

(a)  

Mai's bank account is overdrawn by $60, which means her balance is -$60. She gets $85 for her birthday and deposits it into her account. How much does she now have in the bank?

(a)  

Tyler is overdrawn at the bank by $180. He gets $70 for his birthday and deposits it. What is his account balance now?

(a)  

Andre has $37 in his bank account and writes a check for $87. After the check has been cashed, what will the bank balance show?

(a)  

Last week, it rained $$g$$ inches. This week, the amount of rain decreased by 5%. Which expressions represent the amount of rain that fell this week? Select all that apply.

Decide whether or not each equation represents a proportional relationship. Volume measured in cups ( $$c$$ ) vs. the same volume measured in ounces ( $$z$$ ): $$c = \frac{1}{8} z$$

Area of a square ( $$A$$ ) vs. the side length of the square ( $$s$$ ): $$A = s^2$$

Perimeter of an equilateral triangle ( $$P$$ ) vs. the side length of the triangle ( $$s$$ ): $$3s = P$$

Length ( $$L$$ ) vs. width ( $$w$$ ) for a rectangle whose area is 60 square units: $$L = \frac{60}{w}$$