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  • Use proportions to solve for an unknown quantity

Use proportions to solve for an unknown quantity

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  • Question 1:
    1 pts
    		To make 2020 pancakes you have to use 44 eggs. How many eggs are needed to make 100100 pancakes?
    55
    1010
    2020
    3030
  • Question 2:
    1 pts
    		Find the length of a photograph whose width is 4949 inches and whose proportions are the same as a 7−\mboxinch7- \mbox{inch} by 9−\mboxinch9-\mbox{inch} photograph.
  • Question 3:
    1 pts
    		If 33 pounds of apple cost $0.89\$0.89 what is the cost of 1515 pounds of apples at the same rate.
    $4.75\$4.75
    $3.75\$3.75
    $4.45\$4.45
    $3.45\$3.45
  • Question 4:
    1 pts
    		A bookstore offers 55 textbooks for $135.\$135. How much will it cost a teacher to purchase 3232 textbooks for her class?

    $964\$964

    $864\$864

    $764\$764

    $664\$664

  • Question 5:
    1 pts
    		The scale on a map is given as 9\mboxcentimeters9 \mbox{centimeters} to 4.5\mboxkilometers.4.5 \mbox{kilometers.} How far apart are two towns if the distance between this two towns on the map is 16 centimeters?

    10\mboxkilometers10 \mbox{kilometers}

    9\mboxkilometers9 \mbox{kilometers}

    8\mboxkilometers8 \mbox{kilometers}

    7\mboxkilometers7 \mbox{kilometers}

  • Question 6:
    2 pts
    		If 12\dfrac{1}{2} pound of meat sells for $4.50\$4.50, how much meat can be bought for $31.5\$31.5?
  • Question 7:
    2 pts
    		An electric pole, 1414 metres high, casts a shadow of 1010 metres. Find the height of a tree that casts a shadow of 1515 metres under similar conditions.
    x=21x=21
    x=20x=20
    x=19x=19
    x=18x=18
  • Question 8:
    2 pts
    		If the weight of 1212 sheets of thick paper is 4040 grams, how many sheets of the same paper would weigh 2122\dfrac{1}{2} kilograms?
    x=600x=600
    x=750x=750
    x=850x=850
    x=900x=900
  • Question 9:
    3 pts
    		A car travels 540\mboxkm540 \mbox{km} at an average speed of 108\mboxkm/h.108 \mbox{km/h.} How long will it take a truck to travel the same distance if its speed is 13\dfrac{1}{3} that of the car?

    10 hours

    15 hours

    20 hours

    25 hours

  • Question 10:
    3 pts
    		One piece of pipe 21 meters long is to be cut into two pieces, with the lengths of the pieces being in a 2 : 5 ratio. What are the lengths of the pieces?
    4 meters and 17 meters
    7 meters and 14 meters
    6 meters and 15 meters
    5 meters and 16 meters
  • Question 11:
    3 pts
    		In the United States, 21out of every 100 people are under the age of 15. In a town of 20 000 people, how many people would you expect to be under the age of 15?
  • Question 12:
    3 pts
    		Kumar lives in Croatia, and is visiting relatives in India. The current exchange rate is one Euro to 80.4580.45 Indian rupees . He wants to buy a gift for them, which costs 37593 759 Indian rupees. How many Euros will this gift cost him? (State your answer accurate to two decimal places.)
    45.9945.99
    46.7046.70
    46.7146.71
    46.7246.72

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