Understand Rates and Unit Rates

• a
• b
• c
• d

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound
• $5 per pound
• $35 per pound
• 0.125 pounds per dollar

If Justin can type 408 words in 4 minutes, how many words can he type per minute?

• 102 words per minute
• 100 words per minute
• 400 words per minute
• 412 words per minute

A sixth-grade math teacher can grade 25 homework assignments in 20 minutes. Is he working at a faster rate or slower rate than grading 36 homework assignments in 30 minutes?

• Slower rate
• Faster rate
• He didn't grade them
• Everyone got 100

150 grams of fertilizer is required for a land area of 6 square acres. At this rate, how many grams of fertilizer is needed for 1 square acre?

• 25 grams

• 300 grams

• 325 grams

• 310 grams

Four pounds of bananas cost $6.  What is the cost per pound of bananas?

• $24 per pound
• $1.50 per pound
• $1 per pound
• $6 per pound

Which is the "better buy"?  A 12 ounce can of corn for $1.92 of  a 20 ounce can of corn for $3.00?

• They are the same
• The  20 ounce can
• The 12 ounce can

Alycia earned $20.40 in 3 hours. What is her unit rate in dollars per hour?

• $7 per hour
• $6 per hour
• $6.80 per hour
• $17.40 per hour

Which is the better deal?
Oreos
$2.98 for 15 oz
OR
Chips Ahoy
$2.50 for 14 oz

• Oreos
• Chips Ahoy

Which is the slowest reading rate?

• 3 pages in 9 minutes
• 4 pages in 10 minutes
• 5 pages in 13 minutes
• 7 pages in 20 minutes