if you are maths genious then solve question no.13
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Answered by
1
8*(x-5)=3x
ans: x=8
2(x-5)*8=40
ans: x=2.5
ans: x=8
2(x-5)*8=40
ans: x=2.5
Answered by
1
Hey Mate !!
i) Given,
length and breadth = x - 5 & 8cm
Area of rectangle = l × b = 3x
(x - 5) × 8 = 3x
8x - 40 = 3x
8x - 3x = 40
5x = 40
x = 40/5
x = 8cm
ii) perimeter of rectangle = 2 ( l + b ) = 40cm
2( x - 5 + 8 ) = 40
2( x + 3 ) = 40
2x + 6 = 40
2x = 40 - 6
x = 34/2
x = 17cm
HOPE THIS HELPS U...
i) Given,
length and breadth = x - 5 & 8cm
Area of rectangle = l × b = 3x
(x - 5) × 8 = 3x
8x - 40 = 3x
8x - 3x = 40
5x = 40
x = 40/5
x = 8cm
ii) perimeter of rectangle = 2 ( l + b ) = 40cm
2( x - 5 + 8 ) = 40
2( x + 3 ) = 40
2x + 6 = 40
2x = 40 - 6
x = 34/2
x = 17cm
HOPE THIS HELPS U...
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