2,570 Answered Questions for the topic Maths

Maths Physics

07/28/17

Same physics question, quick fix please answer
Need help answering P2, i know the answer to part 1. Im unsure how I work out P2. I got 21271.92W as my answer, because it is a car and my answer is in watts, does that mean it is incorrect.A car... more
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Maths Physics

07/28/17

maths/physics question below, please answer
Need help answering P2, i know the answer to part 1. Im unsure how I work out P2.    A car of mass 1.5 tonnes is driving up a hill, the hill makes an angle of 10 degrees to thehorizontal, at a... more
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07/28/17

physics question below, please help
A car of mass 1 tonne travelling at 50km/h crashes into a stationary car of mass 2 tonnes on an icy road. Neglecting any frictional forces and assuming that after the initial collision the cars are... more
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07/26/17

Question in description (please answer)
A car of mass 1.5 tonnes is driving up a hill, the hill makes an angle of 10 degrees to the horizontal, at a constant 30km/h. Neglecting any friction, what is the power required from the engine to... more
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Maths

07/25/17

A cyclist travelled first five hours at an average speed of 10km per hour,
A cyclist travelled first five hours at an average speed of 10km per hour, another 2 hours at an average speed of 8 km per hour and the last 3 hours at an average speed of 12 km per hour. Find the... more
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Maths

07/25/17

What is the cost of 4.5kg of sugar at 80c per 500g
I don't understand on how to do this question is anyone willing to help  
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Maths

07/24/17

i need help question in description
an art exhibition was held from friday to sunday. 50 more people attended on saturday than on friday, and 80 more people attended on sunday than on saturday. a total of 540 people attended the... more
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07/21/17

Solve chemical reaction for temperature of exothermic reaction (thermite)
Hi there, I I have a question about Physics/ chemistry.If I have a bag of iron oxide(lll) and powdered aluminium in the ratio of 3:1 totalling 72g, with 54g being Fe2O3 and 18g of 2Al, what would... more
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Maths Triangle

07/17/17

Choosing a method for solving a triangle
Two ships sailed from Point A at the same time. One sailed 28 nautical miles due east in 4 hours and the other sailed 36 nautical miles in the same time on a bearing of 158ºT. Find the distance... more
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Maths

07/15/17

How to know that
How to prove that the equation x/n + y/w = 1 is parallel to y= -w/n(x) if n>0 w>0 and n not equal w 
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07/13/17

how do you prove that the derivative of x^n is nx^n-1
how do you prove that the derivative of x^n is nx^n-1
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07/09/17

Sum of roots of a quadratic equation is 17/6 and the product of the roots is -5/2 . Write the quadratic equation and solve it to find the roots
pls give me the answer
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Maths 10th Grade

07/08/17

If ab=14 find hcf of a and b
Given ab= 14 To find HCF(a,b)
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Maths

07/08/17

What is the general term of (x + 2/x)^4 ?
 i want to know the answer of this question immediately for the preparation of my entrance test
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Maths

07/04/17

Interest rate of current account
This is my maths Holidayhomework
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Maths

06/28/17

find the length of a diagonal of rectangles whose length is 30cm and width is 16cm
Answer the above question
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Maths

06/28/17

40% of the animals are dog, 35% are cats and 10% are rabbits. There are 6 birds. How many cat are there
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Maths

06/24/17

write the answer in the time units indicated in the parentheses 7 hours 40 minutes 40 seconds (seconds)
help me with 5000 seconds (minutes,seconds) 7100 minutes (days,hours,minutes)
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Maths

06/22/17

2a+3+2a in simpelest form
Please help.
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Maths

05/30/17

the smallest whole number that is to be multiplied with 59535 to make a perfect square number is x .the sum of digits of x is
Answer is 6 ..please give the solution step by step so that it can help me understand clearly 
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Maths

05/23/17

what is the answer to this: 6/2(1+2)
9 is wrong btw, its 1
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Maths

05/22/17

There are 317 passengers on the plane, there are 85 more adults than kids on the plane. How many children are on the plane
There are 317 passengers on the plane, there are 85 more adults than kids on the plane. How many children are on the plane  
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05/21/17

Word promblem
2/3 of the leaves of a tree fall of in the first week. In the second week 2/3 of the remaining leaves fell off. In the 3rd week 2/3 of the remaining leaves fell off. Now there are 37 leaves left.... more
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Maths

05/18/17

A suit costs £84 in a 30% off sale. Find the original price of the suit.
This is just a math question that in which i need the answer to be confirmed. I know 2 possible answers, £120 and £109. I have used a method in which seems correct.  
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Maths

05/15/17

Maths linear equation in one variable
solve - a two digit number is such that one digit is twice the other. on interchanging the digit the new number so obtained is less  than 9 and twice the orginal number. Find the original number.
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