NSCAS 8th Algebra

Wendy solved an equation and found x to be 5. Which equation could she have solved?

• 2x + 4 = 12

• 13 - 4x = 20

• 3x - 10 = 5x + 20

• 14 + 2x = 54 - 6x

Which equation is equivalent to 3(5x - 4) = 2(7x)?

• 5x - 4 = 14x

• 5x - 12 = 14x

• 15x - 4 = 14x

• 15x - 12 = 14x

What is the solution to the inequality -x/12 + 13 < 15?

• x < -24

• x > -24

• x < -6

• x > -6

What is the solution to the inequality 14y - 14 ≥ 14?

• y ≥ -1

• y ≥ 0

• y ≥ 1

• y ≥ 2

• x ≥ 11

• x ≤ 19

• x < 11

• x > 19

• x < 6
• x ≤ 6
• x < 5.5
• x < 3/2

Tags

CCSS.7.EE.B.4B

• x > 3
• x ≤ ⅕
• x ≥ 3
• x ≤ ⅕

Tags

CCSS.7.EE.B.4B

If x is a number, which expression represents the statement below?

4 less than the product of 2 and a number

• 4 - 2x

• 2x - 4

• 4 - (2 + x)

• 4(2) - x

The Help All Animals Society is having a fundraiser at a local auditorium. They charge $5.00 a ticket to attend the event. If the rental fee for the auditorium is $100, which expression represents the profit if n tickets are sold?

• 5n - 100

• 5n + 100

• 100 - 5n

• 100 ÷ 5n

Kim drove k miles to see her family. Tran drove 3 times as far as Kim to get to his family’s city, plus another 28 miles to get to their house. Which expression represents the number of miles Tran drove?

• k + (3 x 28)

• 3k + 28

• k x (3 + 28)

• 3k x 28