Seventh Grade Mathematics Quiz

Andre wants to buy a backpack originally priced at $40. If the store offers a 30% discount, what is the sale price?

• $12

• $30

• $40

• $28

If 16 students received an A on the first exam and 12 on the second, what is the percentage decrease in students receiving an A?

• 10%

• 20%

• 25%

• 30%

Solve the equation: 2(x - 3) = 14. What is the value of x?

• 10

• 7

• 5

• 12

What is the solution to the equation: -5(x - 1) = 40?

• 7

• 5

• -5

• -7

For the equation 12(x + 10) = 24, what is the value of x?

• -8

• -6

• 8

• 6

Which expression correctly solves the equation 6x + 4 = 20?

• x = -2/3

• x = 2/3

• x = -3/2

• x = 3/2

In solving 7(x + 2) = 91, what is the first step in Noah's method?

• Divide both sides by 7

• Add 2 to both sides

• Subtract 2 from both sides

• Use distributive property

What is the final value of x when solving 7(x + 2) = 91 using Lin's method?

• 10

• 11

• 9

• 12

What is the main difference between Lin's and Noah's methods for solving 7(x + 2) = 91?

• Lin uses addition, Noah uses subtraction

• Lin uses distributive property, Noah uses division

• Lin uses subtraction, Noah uses addition

• Lin uses division, Noah uses multiplication

What is the common step in both Lin's and Noah's methods for solving the equation?

• Subtracting 14

• Dividing by 7

• Adding 2

• Multiplying by 7