Ratios and Proportional Relationships: Understanding Unit Rates and Rate Language (CCSS.6.RP.2)
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Common Core 6th Grade Math › Ratios and Proportional Relationships: Understanding Unit Rates and Rate Language (CCSS.6.RP.2)
Two tickets cost \$10 in total. What is the cost per ticket?
\$10 per ticket
\$0.20 per ticket
\$4 per ticket
\$5 per ticket
Explanation
Cost per ticket means divide total cost by number of tickets: 10 ÷ 2 = 5 dollars per ticket. Dividing backwards (2 ÷ 10 = \$0.20), using the total (\$10), or an arithmetic slip (\$4) are errors.
Jamie paid \$18 for 3 tickets. What is the cost per ticket?
\$18
\$5
\$6
\$0.17
Explanation
Divide dollars by tickets to get dollars per ticket: 18 ÷ 3 = 6 dollars per ticket. \$18 is the total, \$5 is an arithmetic slip, and \$0.17 comes from dividing backwards (3 ÷ 18).
Tickets cost \$18 for 3 tickets. What is the cost per ticket?
\$18 per ticket
\$0.17 per ticket
\$6 per ticket
\$5 per ticket
Explanation
Divide total cost by number of tickets: 18 ÷ 3 = 6, so \$6 per ticket.
A bag of apples weighs 5 pounds and costs \$12.50. What is the price per pound?
\$2.50 per pound
\$12.50 per pound
\$0.40 per pound
\$3.00 per pound
Explanation
Divide total cost by pounds to find dollars per pound: 12.50 ÷ 5 = 2.50, so \$2.50 per pound.
A shop sells 8 sandwiches for \$24. What is the cost per sandwich?
\$24 per sandwich
\$0.33 per sandwich
\$2 per sandwich
\$3 per sandwich
Explanation
Divide dollars by sandwiches: 24 ÷ 8 = 3. The unit rate is \$3 per sandwich.
A group paid \$24 for 6 sandwiches. What is the cost per sandwich?
\$4 per sandwich
\$24 per sandwich
\$0.25 per sandwich
\$3 per sandwich
Explanation
Divide dollars by sandwiches: 24 ÷ 6 = 4, so \$4 per sandwich. \$24 uses the total, \$0.25 divides backwards, and \$3 is an arithmetic slip.
A 64-ounce jug of juice costs \$16. What is the cost per ounce?
\$4.00 per ounce
\$16.00 per ounce
\$0.20 per ounce
\$0.25 per ounce
Explanation
Cost per ounce means divide dollars by ounces: 16 ÷ 64 = 0.25, so \$0.25 per ounce. Dividing backwards (64 ÷ 16) gives \$4, using the total gives \$16, and \$0.20 is an arithmetic slip.
You buy 6 notebooks for \$18. What is the cost per notebook?
\$6 per notebook
\$0.33 per notebook
\$18 per notebook
\$3 per notebook
Explanation
Divide total cost by number of notebooks: 18 ÷ 6 = 3 dollars per notebook. Do not divide backward (6 ÷ 18) or use the total.
A 24-ounce container of yogurt costs \$6. What is the unit rate in dollars per ounce?
\$6 per ounce
\$4 per ounce
\$0.20 per ounce
\$0.25 per ounce
Explanation
Divide dollars by ounces to get dollars per ounce: 6 ÷ 24 = 0.25 dollars per ounce. \$6 per ounce uses the total instead of per ounce, \$4 per ounce comes from dividing backwards (24 ÷ 6), and \$0.20 is an arithmetic slip.
Five pounds of apples cost \$7.50. What is the cost per pound?
\$7.50 per pound
\$1.50 per pound
\$0.67 per pound
\$2 per pound
Explanation
Divide dollars by pounds: 7.50 ÷ 5 = 1.50, so \$1.50 per pound. \$7.50 uses the total, \$0.67 divides backwards, and \$2 is an arithmetic slip.