exam
Maths Puzzle
Numerical Ability
Please help to solve
1/5x - 5/2y = -48
0.4x + 0.05y = 5
thank you!
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exam Other Question
Floor plans for a building have the four corners of a room located at the points (2,3),(11,6),(-3,18) and (8,21). Determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-2,18)
2[18-(5+3^2)/7]
we are doing the (pemdas) i'm not sure what to start with first do idivide or mulitply first