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The equation of line L is y= 3x+2 and the equation of line M is 3y–9x+5=0. Show that these lines are parallel.

First step is to understand what it means for lines to be parallel. This is when the gradients of two lines are the same.This is much easier to see when the format of the equations is the same, so lets rearr...
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Answered by Paulius P. • Maths tutor
4141 Views

Why did France demmand such a harsh settlement at the Peace Treaty in 1919? (6)

This is a 6 mark question which requires reasons in the form of three PEE (Point, Evidence, Explain) paragraphs. A model answer could be structured like this:P: Residual bitterness over the Franco-Prussian W...
TK
Answered by Tara K. • History tutor
12512 Views

Balance the equation for the reaction of sodium hydroxide with sulphuric acid.

H 2 SO 4 + NaOH --> Na 2 SO 4 + H 2 OWrite out all the elements involved, and how many times they appear on each side.H 3:2,S 1:1,O 5:5,Na 1:2.Start by making the number of sodiums the same on both sides ...
LB
Answered by Louise B. • Chemistry tutor
16913 Views

Work out 90% of 130

Find 90% of 130Calculate the value of 10%130 / 10 = 13You can now use this value to find the answer as 100% - 10% = 90% 130 - 13 = 117
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Answered by Freya W. • Maths tutor
3441 Views

3 teas and 2 coffees have a total cost of £7.80. 5 teas and 4 coffees have a total cost of £14.20. Work out the cost of one tea and the cost of one coffee.

Firstly we need to set up a simultaneous equation. 3t +2c =7.80 and 5t +4t = 14.20 Rearrange the first equation to find c on its own. 2c = 7.80 - 3t, c= (7.80 - 3t) / 2Then put the new value of c into the se...
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Answered by Louise B. • Maths tutor
5210 Views