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221
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Babu ~ Chennai
🌐 India
I too need answer please
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221
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Babu ~ Chennai
🌐 India
Answer:
W = 7.5 = 15/2
Step-by-step explanation:
? P = 2 ( L + W ) -------> (1)
? W = L - 10 -------> (2)
substitute by (2) in (1) :
? P = 2 ( L + ( L- 10 ) )
? P = 2 ( 2L - 10 )
? p = 4L - 20
? p = 50 cm
? 50 = 4L - 20
? 50 + 20 = 4L
? 70 = 4L
? L = 70/4
? L = 35/2 = 17.5 -------> (3)
substitute by (3) in (2) :
? W = 17.5 - 10
? W = 7.5 = 15/2
W = 7.5 = 15/2
Step-by-step explanation:
? P = 2 ( L + W ) -------> (1)
? W = L - 10 -------> (2)
substitute by (2) in (1) :
? P = 2 ( L + ( L- 10 ) )
? P = 2 ( 2L - 10 )
? p = 4L - 20
? p = 50 cm
? 50 = 4L - 20
? 50 + 20 = 4L
? 70 = 4L
? L = 70/4
? L = 35/2 = 17.5 -------> (3)
substitute by (3) in (2) :
? W = 17.5 - 10
? W = 7.5 = 15/2
Was this answer helpful?