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storchak [24]
3 years ago
11

The sum of twice a number and 13 is 47. Find the number.

Mathematics
2 answers:
koban [17]3 years ago
8 0

17

Step-by-step explanation:

you represent the unknown by a variable

for example X

2x +13=47

NARA [144]3 years ago
4 0

Answer: 17

Step-by-step explanation:

In this problem, the phrase "a number" can be interpreted as a variable.  In this case, let the variable be "x."

Thus, "twice a number" = "2x"

"and 13" = "+ 13"

"is 47" = "= 47"

Thus, the problem is simply 2x + 13 = 47.

Then, simply subtract 13 from both sides to get 2x = 34.

Then, simply divide both sides by 2 to get x = 17.

Because "the number" is "x," the number is 17.

Hope it helps :) <3 and lmk if you need more help

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<h2>Effective Interest Rate;</h2>

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The answer is 416 and thats it
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Would be great if someone can help with this.
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