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lapo4ka [179]
3 years ago
5

I will mark BRAINILY to first correct answer!! EXTRA POINTSSS!

Mathematics
1 answer:
n200080 [17]3 years ago
7 0
D. 147 i hope it’s right if not i’m so sorry!
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7 or 8 miles per hour

Step-by-step explanation:

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D. x = 5.4, y = 6.67

Step-by-step explanation:

The triangles are similar as per problem description, so the ratios match:

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let's solve:

y/5 = 4/3

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What is the value of x?
lorasvet [3.4K]

Answer:

x=9

Step-by-step explanation:

We can use similar triangles and ratios.  Put the small triangle side over the large triangle side.

9cm            3x -20

----------   = ----------------    We need to add the sides to get to the larger triangle

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We can cross multiply to solve

9 * (3x-20+56) = (72+9) * (3x-20)

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Divide each side by 216

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