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Raya buys a van for £8500 plus VAT at 20%.Raya pays a deposit for the van. She then pays the rest of the cost in 12 equal payments of £531.25 each month. Find the ratio (in simplest form) of the deposit Raya pays to the total of the 12 equal payments.

Raya buys a van for £8,500 x 1.2 = £10,200. Total of 12 equal payments = 12 x £531.25 = £6375. Raya's deposit = £10,200 - £6375 = £3825. Ratio of the deposit Raya pays : Total of the 12 equal payments = 3825...
AB
Answered by Andrew B. • Maths tutor
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A ladder of length 4.5m is leaning against a wall. The foot of the ladder is 2.3m from the base of the wall. What is the angle the ladder makes with the wall?

This is an application of trigonometry. The right angle in this case is between the wall and the floor and the hypotenuse is the ladder. The angle between the wall and the ladder can using the sine of the an...
NF
Answered by Nicci F. • Maths tutor
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Answer quadratic equation in the simplest surd form/ exact from. 5-2x-x^2=0

5-2x-x 2 =0x 2 +2x-5=0 (moving everything over to the other side)then using the quadratic formula (to use a whiteboard during interview)a=1, b=2, c=-5x=(-2 +/- √(2^2 - 4x1x-5))/(2x1)x=(-2 +/- √(4+20))/2x=(-2...
SO
Answered by Seun O. • Maths tutor
4351 Views

Que pourrait-on faire pour réduire la pollution?

D'après moi, il faut agir vite pour réduire la pollution et sauver notre planète. Toutes nos petits gestes éco-citoyens aideront lutter contre la pollution sans cesse. Par exemple, il faut éteindre les lumiè...
HP
Answered by Harry P. • French tutor
2793 Views

Show that (x + 1)(x + 3)(x + 5) can be written in the form ax^3 + bx^2 + c^x + d where a, b, c and d are positive integers.

The way to go about a question like this is to break it down into steps; rather than trying to multiply all the brackets at once expand two first then multiply by the third. ---------------------------------...
MB
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