Solving for Variable Proportions

Solve the proportion below

• 21
• 7
• 8
• 24

Solve the proportion below:

• 3
• 24
• 21
• 12

Solve the proportion below:

• 42
• 6
• 2
• 28

Solve the proportion:

• 15
• 5
• 10
• 12

Hamburger meat sells for $6 for every 3 pounds. If Alicia buys 10 pounds of hamburger meat, how much will she pay?

• $30
• $20
• $60
• $10

The distance that an automobile travels varies directly as the time it travels. If the car travels 280 miles in 7 hours, how far will it travel in 12 hours?

• 480
• 1960
• 84
• 25

Solve the proportion:

• 4
• 21
• 24
• 3

Solve for x:  x/4 = 6/8

• 4
• 2
• 3
• 10

What is the correct way to write the cross multiplication for this proportion

• 15=25x

• 125=5x

• 75=5x

• 5=3x

Solve for a

• 29/12
• 41/12
• 107/12
• 13