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SOVA2 [1]
2 years ago
10

when a number is added to 1/5 of itself, the result is 24. the equation that models this problem is n 1/5 n = 24. what is the va

lue n? n = 18 n = 20 n = 21 4/5 n = 23 4/5
Mathematics
2 answers:
viva [34]2 years ago
5 0
N= 20 because 1/5 of 20 is 4 
GuDViN [60]2 years ago
4 0

Let n be unknown number, then 1/5 of this number is 1/5n. When you add these two numbers, you get

n+\dfrac{1}{5} n.

You know that this sum is equal to 24, so

n+\dfrac{1}{5} n=24.

1. Multiply this equation by 5:

5n+n=120.

2. Solve it:

6n=120,\\n=120:6,\\n=20.

Answer: n=20, correct choice is B.

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Use the diagram and the value of x to find the measures of BCE and ECF.
stepan [7]

Answer:

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Step-by-step explanation:

∠ BCE and ∠ ECF are adjacent angles and are supplementary, thus

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15x = 165 ( divide both sides by 15 )

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Thus

∠ BCE = 10x + 15 = 10(11) + 15 = 110 + 15 = 125°

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7 0
3 years ago
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Deltamath

4 0
3 years ago
Find the range of f(x)=x+3 <br> when the domain (2,4,6)
jarptica [38.1K]
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5 0
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Inessa [10]
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