Reciprocal and Equation Operations

The video tutorial covers two math problems. In Problem 52, Colleen solves an equation by dividing both sides by 4, demonstrating the process step-by-step. In Problem 53, the concept of reciprocals is explained, showing how to find the reciprocal of a given fraction by flipping it. The tutorial emphasizes understanding basic math operations and concepts.

What equation did Colleen solve in Problem 52?

• 2x + 5 = 8

• 2 times 2x plus 5 = 8

• 2x = 8

• 4x + 5 = 8

Tags

CCSS.HSA.REI.A.1

What operation did Colleen perform to move from Step 2 to Step 3?

• Subtracted 4 from both sides

• Added 4 to both sides

• Divided both sides by 4

• Multiplied both sides by 4

Tags

CCSS.HSA.REI.A.1

What would have been the result if Colleen multiplied both sides by 4?

• 16x - 8

• 8x + 20

• 4x = -2

• x = -1/2

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

What is the reciprocal of a fraction?

• The same fraction

• 1 over the fraction

• The fraction squared

• The fraction multiplied by 2

What is the reciprocal of a/b?

• a^2/b^2

• b/a

• a/b

• 1/a

If you have xy/ab, what is its reciprocal?

• xy/ab

• ab/xy

• x/a

• y/b

What is the reciprocal of ax squared over y?

• 1 over ax squared

• ax squared over y

• y over ax squared

• x squared over ay

Which choice represents the reciprocal of ax squared over y?

• Choice C: y over ax squared

• Choice A: ax squared over y

• Choice D: 1 over ax squared

• Choice B: x squared over ay