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antiseptic1488 [7]
3 years ago
12

Nina can braid 48 inches of rope in 1 hour. what is her speed in feet per hour?

Mathematics
1 answer:
mr Goodwill [35]3 years ago
3 0
There are 4 feet in 48 inches, so your answer should just be 4 feet per hour.
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You know the measure of the exterior angle which forms a linear pair with the vertex angle. Describe two ways you can find measu
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Answer:

Step-by-step explanation:

A linear pair are two given angles whose sum is equal to 180^{o}.

Let the exterior angle be represented by x^{o}, and the three interior angles of the triangle be represented by a^{o}, b^{o} and c^{o}.

Assume that the vertex angle c^{o} is the linear pair to the exterior angle x^{o}.

i.e            x^{o} + c^{o} = 180^{o}  (sum of angles on a straight line)

Thus,

i. a^{o} +  b^{o} = x^{o}  (sum of two opposite interior angles is equal to an exterior angle)

⇒ a^{o}  = x^{o} - b^{o}

Also,

b^{o}  = x^{o} - a^{o}

But,

a^{o} + b^{o} + c^{o} = 180^{o}   (sum of angles in a triangle)

⇒ c^{o} = 180^{o} - (a^{o} +  b^{o})

and

a^{o} + b^{o} = 180^{o} - c^{o}

ii. a^{o} + b^{o} + c^{o} = 180^{o}   (sum of angles in a triangle)

a^{o} = 180^{o} - (b^{o} + c^{o})

Also,

a^{o} +  b^{o} = x^{o}

⇒ b^{o} = x^{o} - a^{o}

c^{o} = 180^{o} - x^{o}

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Answer:

Step-by-step explanation:

is this in a test

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Please help with this math problem
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Answer:

-15

Step-by-step explanation:

Given:

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Simply plug in and see if the statement is true. If not, isolate x.

Test for truth:

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Isolate x in original equation:

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