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Chapter 8 Review

Quiz by Heather Offermann

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12 questions
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  • Q1
    If Jerry earns $100 per hour, name the quantity that is constant.
    hours worked
    hours
    amount earned
    $100/hour rate
    30s
  • Q2
    If Jerry earns $100 per hour, which quantity depends on the other?
    Earnings depends on time
    Time depends on earnings
    Rate depends on time
    Earnings depends on $100 rate
    30s
  • Q3
    Which equation represents Jerry earning $100 per hour?
    t=100e
    e=100t
    100t
    e=t/100
    30s
  • Q4
    If Jerry earns $100 per hour, how much will he earn if he works 15.5 hours?
    e=1,550
    He earns $1,550.
    He earns $115.50.
    1,550
    30s
  • Q5
    Sally joined LA Fitness at a rate of $100 the first month and $50 each additional month. Which equation represents the amount she will be charged? Let c = total cost in dollars and m = time in months.
    c = 50m + 100
    c = 100 + 50(m - 1)
    c = 100 + 50m
    c = 150m
    30s
  • Q6
    Given the points A (1, 16), B (2, 12), and C (3, 8) calculate the unit rate of change.
    4
    -4
    +4
    12
    45s
  • Q7
    Solve 42 = 1/5 x +12
    x = 6
    x = 270
    x = 198
    x = 150
    60s
  • Q8
    Solve 2 (4x - 8) +2x = 24
    x = 4/5 or 0.8
    x = 5
    x = 4
    x = 3 1/3 or 3.3333
    60s
  • Q9
    Bob is landing his glider. He is at 8,750 feet and beginning his descent. He descends at a rate of 350 feet per minute. Identify the Dependent and Independent Variables:
    IV: t = time in minutes & DV: h = height in feet
    IV: f = feet & DV: m = minutes
    IV: height in feet & DV: time in minutes
    IV: h = height in feet & DV: t = time in minutes
    45s
  • Q10
    Bob is landing his glider. He is at 8,750 feet and beginning his descent. He descends at a rate of 350 feet per minute. Which equation represents Bob's situation?
    h = 8,750t
    8,750 - 350t
    8,750 = - 350t
    h = 8,750 - 350t
    45s
  • Q11
    Bob is landing his glider. He is at 8,750 feet and beginning his descent. He descends at a rate of 350 feet per minute. How long will it take the glider land?
    25 feet
    8,400 minutes
    25 minutes
    8,400 feet
    60s
  • Q12
    Bob is landing his glider. He is at 8,750 feet and beginning his descent. He descends at a rate of 350 feet per minute. At what time will the glider be at an altitude of 7,350 feet?
    4 feet
    21 feet
    4 minutes
    21 minutes
    60s

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