Solve Equations with Perimeter

The perimeter of an equilateral triangle is 18y - 6.  What is the length of one side of the triangle?

• 6y - 2

• 54y -18

• 3(18y -6)

Tags

CCSS.6.EE.B.7

If a rectangle has a width of 2x + 3 and a length of 4x + 5, how could you represent its perimeter?

• (2x + 3) + (4x + 5)

• 6x + 8

• 2(2x + 3) + 2(4x + 5)

• (2x + 3) • (4x + 5)

Tags

CCSS.7.EE.A.1

Which equation could you use to find x, if the perimeter of a square is 20 with a side of x - 2?

• x² - 2 = 20

• x - 2 = 20

• 4 ( x-2 ) = 20

• 4x = 20 (x - 2)

Tags

CCSS.7.EE.B.4A

• 5 inches

• 8 inches

• 9 inches

• 13 inches

Tags

CCSS.3.MD.D.8

• A

• B

• C

• D

• 4x - 4

• 4x - 6

• 6x - 4

• 6x - 8

Tags

CCSS.3.MD.D.8

Find the perimeter

• 6y-2

• 5y+2

• 3y-1

• 6y²-2

Tags

CCSS.7.EE.A.1

Find the perimeter of the regular triangle.

Type your answer as: _____ units

Tags

CCSS.3.MD.D.8

The perimeter of the rectangle is 26 mm. Find the value of n.

• 2.5

• 5.5

• 12

• none of these

Tags

CCSS.3.MD.D.8