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3 years ago

RSM HOMEWORK HELP!!! PLEASE HELP ME ASAP!!

Mathematics

1 answer:

frutty [35]3 years ago

4 0

Answer:

x = 27

Step-by-step explanation:

AC // DE

m∠ABD ≅ m∠BDE = 72°

m∠ADB + m∠BDE + m∠EDF = 180°

2x + 72° + 2x = 180°

4x = 108°

x = 27°

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A total of 30 percent of the geese included in a certain migration study were male. If some of the geese migrated during the stu

Serggg [28]

<h2>Answer:</h2>

(B). $\frac{7}{12}$

<h2>Step-by-step explanation:</h2>

In the question,

Let the total number of geese be = 100x

Number of Male geese = 30% = 30x

Number of Female Geese = 70x

Let us say 'kx' geese migrated from these geese.

Number of migrated Male geese = 20% of kx = kx/5

Number of migrated Female geese = 4kx/5

So,

Migration rate of Male geese is given by,

$\frac{(\frac{kx}{5})}{30x}$

Migration rate of Female geese is given by,

$\frac{(\frac{4kx}{5})}{70x}$

So,

The ratio of Migration rate of Male geese to that of Female geese is given by,

$\frac{\left[\frac{(\frac{kx}{5})}{30x}\right]}{\left[\frac{(\frac{4kx}{5})}{70x}\right]}=\frac{350}{4\times 150}=\frac{7}{12}$

Therefore, the ratio of the rate of migration of Male geese to that of Female geese is,

$\frac{7}{12}$

Hence, the correct option is (B).

6 0

3 years ago

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rewona [7]

Answer:

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Step-by-step explanation:

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NISA [10]

Answer:

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Step-by-step explanation:

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