Proportions and Cross Multiply

The ratio of a quarterback's completed passes to attempted passes is 7 to 8. If he attempted 24 passes, how many did he complete?

• 21 passes

• 8 passes

• 3 passes

• 27 passes

5 kilometers is equivalent to about 3.1 miles. About how many miles would 20 kilometers be?

• 12.4 miles

• 7.2 miles

• 8.8 miles

• 3.5 miles

A baseball player makes 4 hits in every 7 times at bat. At this rate, if he made 24 hits, how many times was he at bat?

• 42 times at bat

• 96 times at bat

• 168 times at bat

• 24 times at bat

Solve for x 

• x = 1/10
• x = 10
• x = 4
• x = 5

Solve for x 

• x = 98/5
• x = 5/98
• x = 101/5

A car travels 420 miles in 8 hours.  If the car continues at the same rate, how far will it travel in 12 hours?

• 630 miles
• 630 hours
• 600 miles
• 540 hours

Solve the proportion below:

• 42
• 6
• 2
• 28

Solve the proportion below:

• 3
• 24
• 21
• 12

Identify the constant of proportionality.

• k = 1/0.45

• k = 0.45

• k = -0.45

• k = -1/0.45

• none (not proportional)

Which best describes the graph represented in this table?

•  proportional
• non-proportional