2,564 Answered Questions for the topic Maths

12/27/15

Maths, working out the unknown
Hello, I would like to know how to solve such problems:   'Fred is making two rectangular flower beds. The dimensions of the larger rectangle will be three times the dimensions of the smaller... more
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Maths

12/15/15

If I have a box L = 40cm , B = 25cm , H=30cm and cylinders with the height 10cm & length 5cm , how many cylinders will fit in the box and how is this done?
How is this done? expand please?    If I have a box L = 40cm , B = 25cm , H=30cm and cylinders with the height 10cm & length 5cm , how many cylinders will fit in the box and how is this... more
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Maths

12/14/15

Scale drawings and map
A map of a park is drawn using a scale of 1:500. on the map the area of the pond is 1cm2 . find in cm2 the actual area of the pond.  
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Maths

12/12/15

Solve by using the addition method
0.4x - 0.6y = 0.50.2x – 0.3y = 0.7
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Maths

12/12/15

percentage
express 2500 cm2 as a percentage of 4 cm2.
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Maths

12/12/15

percentage
 A light year is 9.46x10^15 metres.the average distance of the planet pluto from the sun is 5.90 x 10^9 kilometres. calculate this distance as a percentage of a light year.
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12/02/15

Physics/Maths
A seat of mass 3 kg is suspended by a rope that is attached to a treebranch. The seat is pushed sideways, so that the rope remains taut, andmakes an angle of 55? with the downward vertical. The... more
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Maths

11/29/15

A Sphere and a cylinder are of same height Radius of sphere is 7cm Find the volume of cylinder of if radius of base of cylinder and radius of sphere are equal
i want answer of this question plz
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Maths

11/23/15

logs . write a simpler number or expression
2log4x = 
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Maths

11/22/15

5/8 of 75m in mixed numbers
5/8 of 75m in mixed numbers
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11/20/15

Hi. Please help me with the following question.
1) Solve the following equations using inverse operations.i) 3x-7=7+xii) 3[(6x-2)/4 (Separate)+ 1 ] = 332) A cylindrical (cylinder) water tank of diameter 2.2m and height of 3m is full of water.... more
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11/20/15

Please help me answer the following question on rational and irrational numbers.
Which of these following numbers are rational and which are irrational?   a) 5.33..... b) Pi c) 6 and 1/3 d) 0.56 e) 2.32 f) square root of 16 g) 1.038120697 h) square root 3 i)... more
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11/19/15

Please help me with the following questions on surds.
1) Expand 5 and square root 5 (square root 6 + 8 and square root 5)   2) Expand (Square root 3 - 4 and square root 5)(Square root 7 - 8 and square root 2)   USING ONLY DOPS FOR 3 AND 4   3)... more
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11/19/15

Please help me answer the following questions on surds.
1) Can a negative be a perfect square? 2) Is -67 an integer? 3) Is 3/7 an integer? 4) What is the square root of 729 with a little 3 on the left of the square root sign? 5) What is the square... more
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Maths

11/16/15

What is the answer ?
The Chuckle Brothers have 20 pounds worth of change in a bag. When they split it, Paul should get 1 pound less than Barry. Knowing this, how much money does Barry need to take in order for him to... more
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11/15/15

Hi. Please help me solve this question.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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11/15/15

Hi. Please help me with the following two mathematical questions.
1) Solve the following equations using inverse operations.i) 3x-7=7+xii) 3[(6x-2)/4 (Separate)+ 1 ] = 332) A cylindrical (cylinder) water tank of diameter 2.2m and height of 3m is full of water.... more
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11/15/15

Hi. Please help me with the following mathematical equations.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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Maths

11/14/15

a^3 + b^3 + c^3 = 33 What is a, b and c value?
a^3 + b^3 + c^3 = 33What is a, b and c value?
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11/14/15

Hi. Please help me with the following mathematical question.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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11/12/15

Hi. Please help me with the following mathematical questions.
1) A flying doctor plane flies from its base (B), in a direction of 072degreesT for 80km to reach an outback station (S). From there, the flying doctor travels in a direction 162degreesT for... more
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11/09/15

a red flare followed the function f(x)= -(x-15)^2+175. a green flare followed the function f(x)= -x(x-25). which flair went highest in the air?
((where x is the horizontal distance in meters and f(x) was the height in meters.)) I got the question partially correct, the red flare went the highest but I got the highest height of the two... more
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11/05/15

Please help me with the following mathematical questions.
1) I did time=distance/speed. my sum was 170/35=time. My answer was 4.85714. How do i show that in hours and the nearest minute?   2) Again, i used the same formula for another question and... more
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Maths Equation

11/05/15

Equations (maths)
"Solve the equation 3x^2+4x-12=0 Give your solution to 2 decimal places"   I would like to know how to workout this, as I only have the answer.   thank you.
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11/05/15

Word problem, lower/upper bounds (maths)
Steve travelled from Ashton to Barnfield   He travelled 235 miles, correct to the nearest 5 miles.  The journey took him 200 minutes, correct to the nearest 5 minutes.   calculate the lower... more
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