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mihalych1998 [28]
4 years ago
5

Helppppp plsss solve for x

Mathematics
2 answers:
pogonyaev4 years ago
8 0
The two triangles we can see in the diagram are similar, which means that their measurements are proportional. Line MN on the larger triangle MNP is 71.5ft long, and its corresponding line, MA, on the smaller triangle is 71.5-22= 49.5ft long. This means that the scale factor from the bigger to the smaller triangle is 71.5/49.5=13/9.
If line MP on the bigger rectangle is 97.5ft long, then its corresponding line, MB, must be 97.5÷13/9=67.5 ft long.
Therefore, x=67.5 ft
Art [367]4 years ago
6 0
There are two similar triangles.
small one , sides x and 71.5-22=49.5
bigger one, sides 97.5 and 71.5

x/97.5 = 49.5/71.5
x = 67.5
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Answer:

Step-by-step explanation:

You can split the coins into 3 groups, each of them has 3 coins. Weigh group 1 vs group 2, if one is lighter, that group has the fake coin. If both groups weigh the same, then group 3 has the fake coin.

Continue to split the group that has the fake coin into 3 groups, each group has 1 coin. Now apply the same procedure and we can identify the fake coin.

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Step 2: you narrow down to group of \frac{3^{n-1}}{3} = 3^{n-2} coins

Step 3: you narrow down to group of \frac{3^{n-2}}{3} = 3^{n-3} coins

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Step n: Step 1: you narrow down to group of 3^{n-n} = 3^0 = 1coin

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