CSA 4a Practice

Which equation is correct for a constant of proportionality of 3?

• y/3 = x

• x = 3y

• y = 3x

• x/3 = y

The number of words a person types is proportional to the number of minutes they type. If a person can type 36 words per minute, how many words can they type in 6 minutes?

• 6 words

• 42 words

• 236 words

• 216 words

A person can type 43 words per minute. How many words can they type in 5 minutes?

• 215 words

• 200 words

• 230 words

• 250 words

A person can type 360 words in 8 minutes. What number represents the constant of proportionality or rate of change?

• 40

• 45

• 50

• 55

If a person walks 1/2 mile in each 1/4 hour, compute the number of miles per hour they can walk.

• 1/8 mph

• 2 mph

• 8 mph

• 4 mph

If a person walks 1/2 of a mile in 1/2 of an hour, how many miles per hour can they walk?

• 1/2 mph

• 1 mph

• 2 mph

• 1/4 mph

Car A can drive 450 miles in 6 hours. Car B can drive 560 miles in 8 hours. How many fewer miles per hour can Car B drive?

• 75 mph

• 70 mph

• They drive the same speed.

• 5 mph

Jane runs 12 miles in 2.5 hours.  Sarah runs 14 miles in 3.5 hours.  Are Jane and Sarah running at the same rate?

• Yes

• No

If Tina uses 2 eggs to make 6 pancakes and Allison uses 4 eggs to make 12 pancakes, is this proportional?

• Yes

• No

Jennifer rides on a train for 6 hours and travels 360 miles.  How many miles per hour does she travel?

• 65 mph

• 60 mph

• 70 mph

• 75 mph