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A box has length 3x cm, width 2x cm and height x cm. The total surface area of the box is 2662 cm^2. Find an equation for the surface area of the box, and use this to find the true values of the dimensions of the box.

Here we are given the surface are of a cuboid box and the dimensions of the box with an unknown variable. Well the total surface area of a cuboid, is going to be the surface area of each of the faces of it a...
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Answered by Dylan D. • Maths tutor
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If the area of a circle is 9pi cm^2, then what is the radius of this circle?

The equation of the area of a circle is A = pi*(r^2) Therefore seeing as we have got the area we must work backwards to be able to answer this question. First we shall start off with substituting into the eq...
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Answered by Tamara T. • Maths tutor
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Solve the following simultaneous equation: 3x+2y=20 and x+4y=20

We are going to try to eliminate one of the variables in one of the equations. This can be done by rearranging the second equation to x=20-4y. And then substituting x into the first equation.3x+2y=20 => 3...
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Answered by Stephanie K. • Maths tutor
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How do I find the area of a circle C with diameter 14cm?

The formula for the area of a circle is π r 2 . To use this formula we first need to find r, the radius of the circle. The radius is the distance from the centre of the circle to the edge, and is equal to ha...
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Answered by Tamsyn H. • Maths tutor
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is your child lost in math ?

As a university student i know all about the right address that pupils need i can really help them understand math
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Answered by Jack L. • Maths tutor
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