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D The average of 43 non-negative integers is 32.4. Find their sum.
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D The perimeter of a rectangular wallpaper is 38 inches and its width is 8 inches. Find the length of the rectangular sheet of wallpaper.
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| D A car travels at an average speed of 58 miles/hour for 300 minutes. Find the distance traveled by the car. D |
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| D An airplane flew 1975 miles at an average speed of 395 miles/hour. How long does it take to fly the entire distance? D |
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| D Brad left his house at 5:00 p.m. and drove directly to his aunt's house, which is 365 miles away. What was the average speed with which he drove, if he reached his aunt's house at 10:00 p.m.? D |
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| D Find the celsius temperature that corresponds to a room temperature of 77oF by using the formula F = ( 95 ) C + 32. D |
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| D Convert 15oC into Fahrenheit scale by using the formula, F = ( 95 ) C + 32. D |
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D The formula S = [n(n+1)]2 is used to find the sum of the first n natural numbers. Find the sum of the first 14 natural numbers.
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| f The formula S = n(n+1)(2n+1)6 is used to find the sum of the squares of the first n natural numbers. Find the sum of the squares of the first 6 natural numbers. f |
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f The formula S = n2(n+1)2/4 is used to find the sum of the cubes of the first n natural numbers. Find the sum of the cubes of the first 12 natural numbers.
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| f Find the area of a rectangle, if its length is 4 cm and its width is 3 cm. f |
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f Find the area of a square, if side of the square is 0.3 cm.
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f Find the perimeter of a square having side of length 2.5 cm.
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f A bus travels at an average speed of 59 miles/hour for 300 minutes. Find the distance traveled by the bus.
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| f The L.C.M. and H.C.F. of two numbers are 80 and 4 respectively. If one of the numbers is 16, then find the other number. f |
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f The perimeter of a rectangular wallpaper is 50 inches and its width is 11 inches. Find the length of the rectangular sheet of wallpaper.
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| f A car travels at an average speed of 57 miles/hour for 240 minutes. Find the distance traveled by the car. f |
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f The formula for the volume of a rectangular pyramid is V = (13) lwh. Write a formula to find the height (h) of the pyramid.
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| f An airplane flew 1182 miles at an average speed of 394 miles/hour. How long does it take to fly the entire distance? f |
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| f The L.C.M. and H.C.F. of two numbers are 150 and 5 respectively. If one of the numbers is 25, then find the other number. f |
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| f Brian left his house at 5:00 p.m. and drove directly to his aunt's house, which is 146 miles away. What was the average speed with which he drove, if he reached his aunt's house at 7:00 p.m.? f |
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f The average of 22 non-negative integers is 23.2. Find their sum.
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f The formula F = (95) × C + 32 is used to convert temperature in Celsius (C) scale to that in Fahrenheit (F) scale. Which of the following best suits the conversion of temperature from Fahrenheit scale to Celsius scale?
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| f Find the celsius temperature that corresponds to a room temperature of 68oF by using the formula F = ( 95 ) C + 32. f |
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| f Find the area of a rectangle, if its length is 7 cm and its width is 4 cm. f |
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| f Convert 10oC into Fahrenheit scale by using the formula, F = ( 95 ) C + 32. f |
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f The formula S = [n(n+1)]2 is used to find the sum of the first n natural numbers. Find the sum of the first 8 natural numbers.
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| f The formula S = n(n+1)(2n+1)6 is used to find the sum of the squares of the first n natural numbers. Find the sum of the squares of the first 12 natural numbers. f |
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f Find the area of a square, if side of the square is 0.2 cm.
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f Find the area of a trapezoid, if b1 = 7 in., b2 = 10 in. and h = 4 in.
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f Total surface area of a cube is given by the formula, L = 6s2, where s is the side of the cube. Find the side of the cube, if the total surface area of the cube is known.
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f Find the base of a triangle, if area of the triangle A and height h are known.
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f Find the perimeter of a square having side of length 3.5 cm.
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f A truck travels at an average speed of 57 miles/hour for 240 minutes. Find the distance traveled by the truck.
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f The formula S = n2(n+1)2/4 is used to find the sum of the cubes of the first n natural numbers. Find the sum of the cubes of the first 4 natural numbers.
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f The table shows the perimeter and side lengths of three equilateral triangles.
| Perimeter of the triangle
(P cm) | Length of side 1 (cm) | Length of side 2 (cm)
| Length of side 3 (cm)
| | 9 | 3 | 3 | 3 | | 12 | 4 | 4 | 4 | | 15 | 5 | 5 | 5 | | ? | s | s | s |
Which formula shows the relationship between the lengths of the sides and the perimeter of the triangle?
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f Find the area of a trapezoid, if b1 = 7 in., b2 = 9 in. and h = 4 in.
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