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Which of the following is an appropriate unit of measure to express the length of a width of a window?

A. Hectometers

B. Kilometers

C. Centimeter

D. Liters

Answer Explanation:

The SI units of measuring length is meter. However, a meter can be a large unit or small quantity depending what is being measured. Therefore, derived units of meters are used to measure the length of an object. In our case, centimeters is the appropriate unit to measure the width of the window.

Therefore, the Correct Answer is C.

More Questions on TEAS 7 Math

  • Q #1: Soft Drinks Shop Orange: Two 24-packs for $15; one 24-pack for $9 Root Beer: One 24-pack for $14 Cream Soda: One 12-pack for $5 A consumer needs to purchase at least 60 soft drinks for a picnic. Which of the following combinations is the most cost-effective?

    A. 2 pack of Orange and 2 packs of Cream Soda

    B. 3 packs of Root Beer

    C. 1 pack of orange, 2 packs of Root Beer and 1 pack of Cream Soda

    D. 4 packs of cream Soda

    Answer Explanation

    Choice A: 2 packs of Orange and 2 packs of Cream Soda

    • Total drinks: 48 + 24 = 72 drinks
    • Total cost: (2 * $15) + (2 * $5) = $30 + $10 = $40
    • This choice not only meets the requirement of at least 60 drinks but also offers the best value in terms of cost per drink, making it the most cost-effective option.

    Choice B: 3 packs of Root Beer

    • Total drinks: 3 * 24 = 72 drinks
    • Total cost: 3 * $14 = $42
    • While this choice meets the requirement of at least 60 drinks, it's not the most cost-effective, as it costs $42 for 72 drinks.

    Choice C: 1 pack of Orange, 2 packs of Root Beer, and 1 pack of Cream Soda

    • Total drinks: 24 + 48 + 12 = 84 drinks
    • Total cost: $9 + (2 * $14) + $5 = $9 + $28 + $5 = $42
    • This choice provides more than 60 drinks, but it's not the most cost-effective due to its higher cost of $42, same as choice B.

    Choice D: 4 packs of Cream Soda

    • Total drinks: 4 * 12 = 48 drinks
    • Total cost: 4 * $5 = $20
    • While this choice is the most cost effective, it falls short of providing the desired number of drinks.

  • Q #2: -3/5, -0.9, -1.9, -8/3 Of the number listed above, which number is the greatest?

    A. -3/5

    B. -0.9

    C. -1.9

    D. -8/3

    Answer Explanation

    To answer this question, we need to convert the numbers into a similar form. Converting decimal numbers into fraction is appropriate to finding the greatest number.

    -0.9 becomes 9/10

    -1.9 becomes 19/10

    Now we find the LCM of the denominators of the four fractions. The LCM of 5, 10 and 3 is 30. Multiply each fraction with the LCM to compare the fractions.

    -3/5*30=-18

    -9/10*30=-27

    -19/10*30=-57

    -8/3*30=-24

    The greatest number is -18, meaning -3/5 is the greatest number.

  • Q #3: Which of the following is the appropriate unit of a measure to express the weight of a sheet of paper?

    A. Liter

    B. Milliliter

    C. Gram

    D. Kilogram

    Answer Explanation

    We required to find the units of finding the weight of a sheet of paper. The SI unit of mass of an object is kilogram. However, kilogram is a large quantity that cannot be used to measure smaller objects.

    Thus, derived units of mass are used to find the mass of other objects. In this case, the mass of a sheet paper can be recorded in grams.