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GRADE 8-MATHEMATICS

Quiz by Theresa Mariz

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15 questions
Show answers
  • Q1
    300s
  • Q2
    300s
  • Q3

    Convert the equation 3x-2y=6 into slope-intercept form.

    y=-\frac{3}{2}x+3

    y=-\frac{3}{2}x\ -\ 3

    y=\frac{3}{2}x\ -\ 3

    y=\frac{3}{2}x\ +3

    300s
  • Q4
    300s
  • Q5
    300s
  • Q6

    Joey can mow the lawn in 40 minutes and Pet can mow the lawn in 60 minutes. How long will it take for them to mow the lawn together?

    25 minutes

    23 minutes

    24 minutes

    26 minutes

    300s
  • Q7

    If the statement "If it is raining, then the streets are wet" is true, what is the inverse of this statement?

    If it is not raining, then the streets are dry.

    If it is not wet, then it is not raining.

    If the streets are dry, then it is not raining.

    If the streets are wet, then it is raining.

    300s
  • Q8

    In a park, two flagpoles cast shadows of equal lengths. If one flagpole is 12 meters tall and casts a shadow 15 meters long, and the other flagpole casts a shadow 20 meters long, how tall is the second flagpole?

    18 meters

    20 meters

    16 meters

    24 meters

    300s
  • Q9

    Two roads intersect at a right angle. If one road is 60 meters long and the other is 80 meters long, how far is it from the intersection to the farthest point on either road?

    160 meters

    100 meters

    140 meters

    120 meters

    300s
  • Q10

    Two identical rectangular gardens have a fence running along one side. If the perimeter of each garden is 40 meters and the length of each garden is 12 meters, what is the width of each garden?

     10 meters

    4 meters

    6 meters

     8 meters

    300s
  • Q11

    A triangle has sides of lengths 5 cm, 12 cm, and 13 cm. If a similar triangle has a side of length 10 cm, what are the lengths of the other two sides?

    24 cm and 32 cm

    24 cm and 26 cm

     15 cm and 20 cm

    20 cm and 24 cm

    300s
  • Q12

    Which set of side lengths forms a triangle according to the triangle inequality theorem?

    5 cm, 9 cm, 15 cm

     8 cm, 14 cm, 24 cm

    5 cm, 7 cm, 10 cm

     6 cm, 10 cm, 18 cm

    300s
  • Q13

    A bag contains 6 red balls, 4 blue balls, and 2 green balls. If one ball is randomly selected from the bag, what is the probability of selecting a green ball?

    \frac{1}{2}

    \frac{1}{6}

    \frac{1}{3}

    \frac{1}{4}

    300s
  • Q14

    A box contains 8 white balls, 5 black balls, and 3 red balls. If one ball is randomly selected from the box, what is the probability of selecting a black or red ball?

    \frac{5}{16}

    \frac{5}{8}

    \frac{3}{16}

    \frac{1}{2}

    300s
  • Q15

    What are the dimensions of a rectangle that maximizes its area, given a perimeter of 36 units?

    9 units by 9 units

    6 units by 15 units

     12 units by 12 units

    15 units by 6 units

    300s

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