The area of rectangle is xy where x is length and y is breadth. If the length of rectangle is increased by 5 units and breadth is decreased by 3 units ,the new area of rectangle is
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59
Length of rectangle = Let be L1 = x
Breadth of rectangle = Let be B1 = y
Area of rectangle = xy
After increasing length and breadth,
New length = L2 = x + 5
New breadth = B2 = y - 3
New area = L2 * B2
= ( x + 5 ) ( y - 3 )
= x ( y - 3 ) + 5 ( y - 3 )
= xy - 3x + 5y - 15
Hence New Area of rectangle is xy - 3x + 5y - 15 .
Breadth of rectangle = Let be B1 = y
Area of rectangle = xy
After increasing length and breadth,
New length = L2 = x + 5
New breadth = B2 = y - 3
New area = L2 * B2
= ( x + 5 ) ( y - 3 )
= x ( y - 3 ) + 5 ( y - 3 )
= xy - 3x + 5y - 15
Hence New Area of rectangle is xy - 3x + 5y - 15 .
Answered by
17
Answer:
your answer is
Step-by-step explanation:
xy-3x+5y-15
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