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Proportions

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  • In Ryan’s class of 27 students, 15 are boys and 12 are girls. What part of the class is girls?


    4/9
    5/9
    4/5
    5/4


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  • An adult rainbow trout is about 12 times as large as a baby rainbow trout.

    If an adult trout is 40 centimeters in length, which is closest to the length of a baby trout?


    3.3 centimeters

    12.1 centimeters

    40.0 centimeters

    48.0 centimeters


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  • A radio station has received 108 promotional tickets. The radio station gives away twice as many tickets to call-in listeners as to its advertisers. How many tickets does the radio station give to its advertisers?

    18
    36
    54
    72


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  • Under ideal conditions, there is an inverse relationship between the pressure (P) and the volume (V) of a gas. The table shows the relationship of the experimental pressures recorded for four different volumes of the gas. Which equation shows the relationship between the pressure and the volume of this gas?


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  • Mr. Brady asked his algebra class to make a scale drawing of the classroom, which is shaped like a rectangle with a width of 20 feet and a length of 24 feet. Travis made the width of the classroom in his scale drawing 5 inches. What should be the length in Travis’s scale drawing?

    6 inches
    8 inches
    9 inches
    10 inches


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