smartie12 smartie12

19-04-2017
Mathematics

contestada

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

What is the answer to number 5 and how did you solve it Please Help class=

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PixLixy PixLixy

19-04-2017

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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19-04-2017

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.

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