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2 years ago

What is the value of the n in this equation n + 16 = 21

Mathematics

2 answers:

Verdich [7]2 years ago

7 0

Answer:

n = 5

Step-by-step explanation:

Given

n + 16 = 21 ( isolate n by subtracting 16 from both sides )

n = 5

Marianna [84]2 years ago

3 0

Answer:

n=5

Step-by-step explanation:

n+16=21

n=21-16

n=5

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marishachu [46]

Answer:

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Step-by-step explanation:

Given the mathematical expression;

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2 years ago

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kherson [118]

Answer:

X=1

Step-by-step explanation:

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3 years ago

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denis-greek [22]

Answer:

Step-by-step explanation

because 256 is root of 4 raised to 4

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3 years ago

Classify the triangle by its sides, and by its angles

ivolga24 [154]

There is no triangle

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2 years ago

Annie walks 15 feet away from her house and places a mirror on the ground. She backs 4 feet away from the mirror so that she can

artcher [175]

Answer:

The house is 18.75 feet tall

Step-by-step explanation:

The triangles are similar by the AA postulate.

We are given the length of the bottom sides of the triangles, 4 and 15 respectively.

Thus, the ratio is 4:15

We are also given the height of Annie's eyes, which is 5 feet. The height of the side that corresponds to the house is 5, so we can set up a proportion.

$\frac{4}{15} = \frac{5}{x} \\4x = (5*15) = 75\\x = \frac{74}{4} \\x = 18.75$

Thus, the house is 18.75 feet tall.

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3 years ago

What is the value of the n in this equation n + 16 = 21​

What is the value of the n in this equation n + 16 = 21