Solving Linear Equations and Percentages

This video tutorial covers Unit 6, focusing on tape diagrams, equations, and their applications. It explains how to use tape diagrams to solve equations, discusses true equations, and explores balancing equations. The tutorial also delves into solving equations, interpreting fractions, writing expressions with variables, revisiting percentages, and understanding equal and equivalent expressions.

What does the larger green rectangle represent in the equation x + 4 = 17?

• The number 4

• The sum of x and 4

• The number 17

• The unknown x

If 5 * x = 35, what is the value of x?

• 7

• 8

• 6

• 5

Which diagram matches the equation x + 3 = 9?

• Diagram C

• Diagram B

• Diagram D

• Diagram A

How much does one pound of potatoes cost if 4.5 pounds cost $22.52?

• $5.56

• $5.00

• $6.00

• $6.56

What is the solution to the equation 2x = 5?

• 2.5

• 4

• 3

• 5

If 20% of the kids in a band own their instruments, how many own them if there are 90 kids?

• 36

• 27

• 18

• 9

What is the value of x if 3x = 18?

• 7

• 6

• 5

• 4

If 40% of a number is 35, what is the number?

• 87.5

• 75

• 70

• 80

How many questions are on an exam if 9 questions represent 60% of the total?

• 12

• 15

• 20

• 18

If 80% of a number is 100, what is the number?

• 120

• 125

• 130

• 135