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Solve the simultaneous equations: 3x + y = -9, x^2 + 2x - 3 = y

Rearrange the first equation to equal 'y' so y = -9 - 3xSubstitute this into equation 2 so x^2 + 2x - 3 = -9 - 3xRearrange this to equal 0 so x^2 + 5x + 6 = 0Factorise this by utilising brackets so that the ...
MJ
Answered by Maryum J. • Maths tutor
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Should skilled workers be paid more than unskilled workers? (8 marks)

Skilled workers are likely to have higher productivity so the firm will gain more revenue. They can also demand more pay as they are inelastic in supply (can draw a diagram to show this however not needed), ...
MJ
Answered by Maryum J. • Economics tutor
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John left home at 13:55 and reached the shops at 15:20.  How long did his journey take?

Work out number of minutes from 13:55 to next hour (14:00) which is 5 minutesCalculate number of whole hours until 15:20 so 1 whole hour = 60 minutesCalculate number of minutes from 15:00 to 15:20 so 20 minu...
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Answered by Maryum J. • Maths tutor
3201 Views

Consider Gerald's significance in 'An Inspector Calls'

POINT: Gerald's social status and the Birling's wish to impress him and combine businesses. EVIDENCE: ‘lower costs and higher prices’ EXPLAIN/ CONTEXT: the play demonstrates the social standing of men of the...
MJ
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At the shop, Max buys 5 juice boxes and 12 sweets which costs him £1.34 in total. If x represents the cost of one juice box (in pence) and y represents the cost of one sweet (in pence), write out an equation, in terms of x and y, to show this

5x + 12y = 134
MJ
Answered by Maryum J. • Maths tutor
1747 Views