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Factorise x^2 - 7x + 12 = 0

Method 1) Find two numbers which multiply to 12, and who’s sum is -7. ( This could be done by writing out the factors of 12, and seeing which add to -7.) From doing this we get -3 and -4, therefore our answe...
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Answered by Rachel S. • Maths tutor
24588 Views

Solve 4(x-5)=3x-6

First, expand brackets to make your life easy. So you would do 4 times x and 4 times -5 to give u 4x-20. Then gather all the x's on one side of the equation and numbers on the other side. 4x-20=3x-6. Remembe...
AS
Answered by Aymen S. • Maths tutor
5518 Views

Explain what an eco town is, including an example

Ecotown's are a government scheme initiated in 2007, with the plan to build 10 eco towns by 2020. Their role is to ease the adorability crisis and develop more places to live that are eco-friendly, whilst al...
ML
Answered by Molly L. • Geography tutor
5979 Views

Was machst du gerne in deiner Freizeit?

In meiner Freizeit spiele ich gerne Fußball. Am Wochenende spielt mein Verein oft gegen andere Vereine in Punktspielen. Manchmal schaue ich, nachdem ich meine Hausaufgaben gemacht habe, Fernsehen. Wenn meine...
AM
8014 Views

There are a collection of CDs. There are 2 Rock CDs, x Pop CDs and 2x + 5 Jazz CDs. A CD is chosen at random, the probability that it is Rock is 1/20. Work out the probability it is Jazz.

To answer this question first we need to work out how many CDs we have in total. We do this by adding up the number of CDs in each category:Total = 2 + x + 2x + 5. We can simplify this to give:Total = 3x + 7...
JM
Answered by James M. • Maths tutor
9166 Views