Translating Sentences Into Equations and Writing Formulas

Three times r less than 15 equals 6.

• 15 - 3r = 6

• 3r - 15 = 6

• 3(r-15) = 6

• 15 - r³ = 6

Tags

CCSS.HSA.CED.A.3

A number n squared plus 12 is the same as the quotient of p and 4.

• n² + 12 = 4p

• 2n + 12 = p + 4

• n² + 12 = p ÷ 4

• n² + 12 = p(4)

Tags

CCSS.HSA.CED.A.4

Four times π times the radius squared is the surface area of a sphere.

• 4π(2r) = S

• 4πr = S

• 4πr³ = S

• 4πr² = S

Tags

CCSS.HSA.REI.B.3

One third the product of the length of the side squared and the height is the volume of a pyramid with a square base.

• ⅓s³h = V

• ⅓s²h = V

• ⅓s²h = V²

• ⅓sh = V

Tags

CCSS.8.EE.C.7B

Three fourths of w plus 5 is one half of w increased by nine.

• ¾w + 5 = ½w + 9

• ¾w + 5 = ½w(9)

• ¾w + 5 = ½w⁹

• ¾w + 5 = (w + 9)/2