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primary 5 | Maths
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Date Posted: 4 years ago
Views: 257
Form simultaneous equations.
Let durians be x, mangoes be y.
3x +2y = 11 ----- 1st equation
4x + 6y = 15.5 -----2nd equation
1st equation X3 = 9x +6y = 33. ------- 2)
take 2) and subtract the 2nd equation.
5x = 17.5
x = 3.5
when x is 3.5, y = 0.25.
Thus 5x + 19y = 5 x 3.5 + 19 x 0.25 = 22.25.
Let durians be x, mangoes be y.
3x +2y = 11 ----- 1st equation
4x + 6y = 15.5 -----2nd equation
1st equation X3 = 9x +6y = 33. ------- 2)
take 2) and subtract the 2nd equation.
5x = 17.5
x = 3.5
when x is 3.5, y = 0.25.
Thus 5x + 19y = 5 x 3.5 + 19 x 0.25 = 22.25.
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Date Posted:
4 years ago
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