2,563 Answered Questions for the topic Maths

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
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.  
Maths

12/12/15

Solve by using the addition method

0.4x - 0.6y = 0.50.2x – 0.3y = 0.7
Maths

12/12/15

percentage

express 2500 cm2 as a percentage of 4 cm2.
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.

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
Maths

11/23/15

logs . write a simpler number or expression

2log4x = 
Maths

11/22/15

5/8 of 75m in mixed numbers

5/8 of 75m in mixed numbers

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

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

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

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
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

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

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

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
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?

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

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

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

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
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.

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

11/05/15

Word problems (maths)

"Claire is making a loaf of bread. A loaf of bread loses 12% of its weight when it's baked. Claire wants the baked loaf to weigh 1.1kg. Work out the weight of tbe loaf of bread before it is... more

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