Grade 6 Mathematics · Unit 3: Ratios & RatesStandard 6.AT.2

Lesson 3.83.8 · Part II

Apply Day · Set BSecond form · new problems, same idea

Mastery check☐ Exceeds☐ Meets target☐ Needs practice
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Learning target I can solve real-world problems by using unit rates to compare options.

Remember3.8 · Part II

Solving Problems with Unit Rates

  1. Find the unit rate by dividing total cost by quantity
  2. Compare unit rates to determine the best deal
  3. Multiply unit rate by desired quantity to calculate total cost

Words: Unit Rate (Tasa unitaria)Better Buy (Mejor compra)Comparison (Comparación)Per Unit (Por unidad)Rate (Tasa)

  1. 1Complete each step, then write the final answer.
    Pens51Cost ($)$4?÷ ?÷ ?

    5 pens cost $4. What is the cost for 1 pen?

    Show your work
    Final answer:
  2. 2Complete each step, then write the final answer.
    Tokens2501Cost ($)$35?÷ ?÷ ?

    Game World sells 250 tokens for $35. What is the cost for 1 token?

    Show your work
    Final answer:
  3. 3Complete each step, then write the final answer.
    Tokens1?Cost ($)$0.12$30× ?× ?

    Tokens cost $0.12 each at Fun Supply Co. How many tokens can you buy for $30?

    Show your work
    Final answer:
  4. 4Complete each step, then write the final answer.
    Car A gallons51Car A miles150?Car B gallons61Car B miles168?÷ ?÷ ?

    Car A goes 150 miles on 5 gallons of gas. Car B goes 168 miles on 6 gallons. Which car goes farther on 1 gallon?

    Show your work
    Final answer:
  5. 5Complete each step, then write the final answer.
    Minutes6125Pages84??÷ ?÷ ?× ?× ?

    A printer prints 84 pages in 6 minutes. At this rate, how many pages does it print in 25 minutes?

    Show your work
    Final answer:
  6. 6Complete each step, then write the final answer.
    Store A cans648Store A cost ($)$4.20?Store B cans848Store B cost ($)$5.44?× ?× ?

    Store A sells 6 cans for $4.20. Store B sells 8 cans for $5.44 but adds a $1 fee to each order. You need 48 cans in one order. Which store costs less in total?

    Show your work
    Final answer:
  7. 7Circle the letter of the best answer. Show how you know.

    Which is the better buy: 6 bouncy balls for $4.50 or 10 bouncy balls for $8.00?

    1. A10 for $8.00 — $0.80 each
    2. BThey cost the same per ball
    3. CNot enough information
    4. D6 for $4.50 — $0.75 each
    Show your work
  8. 8Circle the letter of the best answer. Show how you know.

    A faucet drips 15 ounces of water in 5 minutes. What is the unit rate?

    1. A0.33 ounces per minute
    2. B3 ounces per minute
    3. C5 ounces per minute
    4. D15 ounces per minute
    per 1
  9. 9Circle the letter of the best answer. Show how you know.

    A printer prints 42 pages in 6 minutes. How many pages does it print in 15 minutes at the same rate?

    1. A70 pages
    2. B90 pages
    3. C105 pages
    4. D120 pages
    Show your work
How did it go? ☐ 4 · I can teach it☐ 3 · I've got it☐ 2 · I need a hint☐ 1 · I need help