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1.9-2.4 Review

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  • A taxi costs $4 to start plus $2 per kilometer. Is total cost proportional to kilometers?
    No
  • What is the reciprocal of -4/3?
    -3/4
  • Four bags cost $8. What is the cost of one bag?
    $2 per bag
  • You earn $40 in 5 hours. What is your pay per hour?
    $8 per hour
  • Pack A has 4 bags for $6. Pack B has 5 bags for $7.50. Which pack has the lower cost per bag?
    Pack A
  • You travel 3 miles per hour for 4 hours. How far do you travel?
    12 miles
  • Are 2:3 and 6:8 equivalent ratios?
    No
  • You earn $9 per hour. How much do you earn in 6 hours?
    $54
  • What is (-7/8) ÷ (5/4)?
    -7/10
  • Write a ratio equivalent to 2:5 with first number 4.
    4:10
  • What is (-2 1/4) ÷ (-3/8)?
    6
  • What should you multiply by to divide by 2/3?
    -Multiply by 3/2
  • The table has x values 2 and 4 and y values 5 and 10. Write the equation y = kx.
    y = 2.5x
  • One ticket costs $5 with no extra fee. Is cost proportional to the number of tickets?
    Yes
  • The cost is y = 1.50x. What does 1.50 mean?
    $1.50 per apple
  • Three notebooks cost $6. How much do 6 notebooks cost?
    $12
  • One apple costs $1.50. How much do 8 apples cost?
    $12
  • In y = 3x what is the constant of proportionality k?
    3
  • Are 2:3 and 8:12 equivalent ratios?
    Yes
  • What is (3/4) ÷ (2/5)?
    15/8
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