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primary 6 | Maths
| Percentage
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Date Posted: 1 year ago
Views: 364
Money Robert and Sam Had: x
Price of computer: y
x + 150 = y (1- 0.1) (10 percent discount)
=> x + 150 = 0.9y
x - 200 = y (1- 0.3)
=> x - 200 = 0.7y
solve simultaneous equations to find x:
x = 1425
Price of computer: y
x + 150 = y (1- 0.1) (10 percent discount)
=> x + 150 = 0.9y
x - 200 = y (1- 0.3)
=> x - 200 = 0.7y
solve simultaneous equations to find x:
x = 1425
See 1 Answer
p6 never learn simultaneous equation
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