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sukhopar [10]
4 years ago
9

138(40)=2.15(40)^2/64.4f find f

Mathematics
1 answer:
tigry1 [53]4 years ago
8 0
Hope this helps.

Good luck mate :P

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The areas of two similar triangles are 72dm2 and 50dm2. The sum of their perimeters is 226dm. What is the perimeter of each of t
zloy xaker [14]

Answer:

103=  p small

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Step-by-step explanation:

We know that the the ratio of the areas is the scale factor squared/

Larger triangle over smaller triangle

72

----- = scale factor ^2

50

simplify by dividing by 2 on top and bottom

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25

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sqrt(36)

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sqrt(25)

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5

The ratio of the perimeters is the scale factor

p large             6

-------------- = ----------------

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Using cross products

6 p large = 5 p small

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p large + p small = 226

p large = 226 - p small

We have 2 equation and 2 unknowns

6 p large = 5 p small

Substitute for p large

6 (226 - p small) = 5 p small

1356 - 6 p small = 5 p small

Add 6 p small to each side

1356 = 11 p small

divide by 11

1356/11 =  p small

P large = 226-1356/11

p large = 2486/11-1356/11

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The solution requires whole number answers so

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123.27 which rounds to 123

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3 years ago
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Liter – Volume

Milli – Thousand

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Celsius – Temperature

Deci – Ten

Step-by-step explanation:

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borishaifa [10]

54 / 2 2/3 =

54/1 / 8/3 =

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4 years ago
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