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Rom4ik [11]
4 years ago
15

What is the answer to number 5 and how did you solve it? Please Help!!

Mathematics
2 answers:
Mars2501 [29]4 years ago
7 0
2/7 = x/28
Cross multiply
7x = 2(28)
7x = 56
Divide both sides by 7
x = 8
8 out of 28 were used on the inside so 20 were used on the outside.
julsineya [31]4 years ago
4 0
Well 7x4=28 right?
So what is 2/7 of 28?
8! So the answ is..
Ernest used 20 nails!!
:D
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