Math 1 VUSD Unit 1 Check Your Readiness (from IM)

Solve the equation: 3x = 12

• x = 4

• x = 3

• x = 6

• x = 12

Answer explanation

To solve the equation 3x = 12, divide both sides by 3 to isolate x. Therefore, x = 12 / 3 = 4. So, the correct answer is x = 4.

Tags

CCSS.6.EE.B.7

Solve the equation: -3x = 9

• x = -3

• x = 3

• x = -9

• x = 9

Answer explanation

To solve -3x = 9, divide both sides by -3 to get x = -3. Therefore, the correct answer is x = -3.

Tags

CCSS.6.EE.B.7

Solve the equation: 3x = -1/2

• x = -1/6

• x = 1/6

• x = -2/3

• x = 2/3

Answer explanation

To solve the equation 3x = -1/2, divide both sides by 3 to get x = -1/6. Therefore, x = -1/6 is the correct choice.

Tags

CCSS.6.EE.B.7

Solve the equation: (1/2)x = 12

• x = 6

• x = 24

• x = 12

• x = 3

Answer explanation

To solve the equation (1/2)x = 12, multiply both sides by 2 to get x = 24. Therefore, the correct answer is x = 24.

Tags

CCSS.6.EE.B.7

• -3x - 2

• 3x + 2

• (-6x + 4)/2

• (-1/2)(6x + 4)

Answer explanation

The expressions -3x - 2 and (-1/2)(6x + 4) are equivalent to (-6x - 4)/2 by distributing the division across the terms.

Tags

CCSS.6.EE.A.4

Graph the equation y = 4x + 2 on the grid.

Rewrite the expression 3x - 4 - (5x + 7) as an equivalent expression with fewer terms.

Answer explanation

To rewrite the expression 3x - 4 - (5x + 7) with fewer terms, distribute the negative sign inside the parentheses: 3x - 4 - 5x - 7. Combine like terms to get -2x - 11.

Tags

CCSS.7.EE.A.1

Answer explanation

Subtract 2x from both sides to isolate x. 3x - 2x = 2x - 2x - 8. Simplify to x = -6.

Find a fraction that is equal to 0.4.

Answer explanation

To find a fraction equal to 0.4, we can express it as 4/10. Simplifying this fraction gives us 2/5, which is equal to 0.4.