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How does the volume in the lungs change as we breathe?

As humans breathe in, the ribcage moves upwards and outwards. As this happens, the diaphragm flattens and moves down. This allows air to move into the lungs causing an increase in volume within the lungs. Th...
RW
Answered by Rebecca W. • Biology tutor
3604 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
4902 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
4233 Views

How can I improve on my pronunciation?

French is a hard language to pronounce, especially for English-speaking people. There are two basic things you need to do when speaking: 1. make you speak slowly and don't forget any letters; 2. make sure yo...
JB
Answered by Julian B. • French tutor
3511 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,...
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Answered by Mike H. • Maths tutor
5141 Views