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write ( 4 x 10^-3) x ( 9 x 10^14) in standard form

the first thing we need to do is rearrange the order of our question to ( 4 x 9 ) x (10^-3 x 10^14). now (4 x 9) = 36 (10^-3 x 10^14) = 10^(-3 + 14) = 10^11 so our answer is 36 x 10^11 however this is not in...
SS
Answered by Sam S. • Maths tutor
11589 Views

How would you solve a simultaneous equation?

Solving a pair of simultaneous equations should ALWAYS begin in labelling each equation. I would go about labelling the first equation (1) and the second (2). A quadratic simulataneous equation question is d...
DB
Answered by Declan B. • Maths tutor
4381 Views

Solve the equation (3x+2)/(x-1)+3=4

First we must think about the fraction on the left hand side - we have to multiply everything by x-1 in order to get rid of the fraction. This leaves us with 3x+2+3(x-1)=4(x-1). Then, we must expand the brac...
MS
Answered by Mary S. • Maths tutor
4812 Views

5q^2.p^12/10(q.p^3)^2

First of all, the best thing to do is to split the question into its different components: 5 x q^2 x p^12 / 10 (q x p^3)^2 Next we want to get rid of the brackets. With indices there are several important ru...
BP
Answered by Bethan P. • Maths tutor
4140 Views

Solve 2x+5=9

So, to solve this we want to isolate the x's on one side of the equation. We do this by subtracting 5 from both sides to give 2x=4. Then, we want to obtain a single x on one side of the equation. To do this,...
MH
Answered by Mike H. • Maths tutor
5057 Views