Banking and Proportional Relationships

The video tutorial covers various mathematical concepts for 7th grade students, including proportional relationships, bank account transactions, percentage decrease in rainfall, solving missing numbers in transactions, adding fractions and mixed numbers, and understanding number line diagrams. Each section provides detailed explanations and examples to help students grasp these concepts effectively.

Which of the following equations represents a proportional relationship?

• l = 60/w

• p = s^3

• c = 1/8 z

• a = s^2

If Claire has $54 and receives a $10 refund, how much does she have now?

• $74

• $64

• $54

• $44

Tyler is overdrawn by $180, and his brother has $70 more. How much does his brother have?

• $250

• -$250

• $110

• -$110

After a 5% decrease in rainfall, which expression represents the new amount?

• 0.95g

• g + 0.05

• 1.05g

• g - 0.5

What is the new balance if a bank account with $200 has $147 withdrawn?

• $347

• $200

• $147

• $53

If a bank account balance goes from -$86 to $0, how much was deposited?

• $86

• $0

• -$86

• $172

What is the result of adding 5 3/4 and -1/4?

• 5 1/2

• 6

• 5 3/4

• 5 1/4

What is the sum of -2/3 and 1/6?

• 1/2

• -1/3

• 1/3

• -1/2

What is the result of adding -8/5 and -3/4?

• -32/20

• -23/20

• -11/20

• -47/20

In a diagram, if x is marked to the left of zero, what can be said about x?

• x is negative

• x is zero

• x is positive

• x is greater than 1