Math 1 Equations and Inequalities

Use the image to select the correct response

• A.

• B.

• C.

• D.

Select the correct response based on the image

• A.

• B.

• C.

• D.

The formula used to determine the sum, of interior angles for a polygon is S = 180(n - 2) , where n is the number of sides. Which formula can be used to determine n , given S?

• C. n = 180S + 2

• D. n = 180S - 2

• 3

• 5

• 7

• 21

• -30

• -12

• 12

• 30

What is the solution to the inequality ?

• x > -4

• x < -4

• x > -3

• x < -3

Which equation has infinitely many solutions?

• 6x + 2 - 4x = 6 - 2x - 4

• 6x + 2 - 4x = 4 + 2x - 6

• 4x - 2 - 6x = 6 - 2x + 4

• 4x + 2 - 6x = 6 - 2x - 4

A number increased by 65 is the same as 5 times the number, then decreased by 15. What is the number?

• 20

• 16

• 40/3

• 25/3

What is the solution to the equation 2(3x + 4) = 3(2x + 1)?

• x = -5

• x = 3

• no solution

• infinite solutions