Solve Proportions: Key Concepts and Techniques

What operation is used to isolate the variable in a one-step equation involving multiplication?

• Addition

• Subtraction

• Multiplication

• Division

What is the result of dividing both sides of the equation 8x = 84 by 8?

• x = 7

• x = 10.5

• x = 21

• x = 12

In the equation 13 = 4m, what is the value of m after dividing both sides by 4?

• m = 3.25

• m = 5.25

• m = 2.25

• m = 4.25

What is the purpose of using cross products to solve proportions?

• To add values across the equal sign

• To subtract one side from the other

• To multiply the known values

• To find the value of the unknown variable

What is the result of the cross product 6 over n equals 4 over 15?

• n = 90

• n = 15

• n = 22.5

• n = 10

What is the first step in solving the proportion 6/n = 4/15 using cross products?

• Subtract 4 from 6

• Add 6 to 15

• Multiply 6 by 15

• Divide 6 by 4

After solving the equation 4n = 90, what is the value of n?

• n = 21.5

• n = 23.5

• n = 20.5

• n = 22.5

How do you simplify the equation 5.4k = 189 after applying cross multiplication?

• k = 45

• k = 25

• k = 55

• k = 35

What does the equation 11m = 200 simplify to after dividing both sides by 11?

• m = 18.18

• m = 20

• m = 18

• m = 22.22

What is the result of the cross product in the proportion 5.4k = 189?

• k = 35

• k = 34.5

• k = 33.5

• k = 36