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Scilla [17]
3 years ago
12

What is the answer to this

Mathematics
2 answers:
Alex_Xolod [135]3 years ago
8 0

umm I don't know hehe oops

malfutka [58]3 years ago
7 0

Answer:

Length of old board = 68.2cm

Step-by-step explanation:

Let old board length be x

Given new board is 120 % longer than old board = x + 120% of x

Length of new board = 150cm

Therefore,

x + 120% of x = 150

x + \frac{120}{100} x = 150\\\\x + 1.20x = 150\\\\2.2x = 150 \\\\x = 68.18 = 68.2cm

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