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KengaRu [80]
3 years ago
11

When 3 times a number is decreased by 9, the result is 27. What is the number?

Mathematics
2 answers:
FinnZ [79.3K]3 years ago
7 0

x=12 hope it helps :D

son4ous [18]3 years ago
4 0
3x-9=27
+9 +9
3x=36
/3 /3
x=12
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Anastasy [175]

64

Step-by-step explanation:

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8 0
3 years ago
Suppose you are asked to find the area of a rectangle that is 2.1-cm wide by 5.6-cm long. Your calculator answer would be 11.76
Vladimir79 [104]

Answer:

The area of the rectangle is 12 cm² ⇒ in 2 significant figures

Step-by-step explanation:

* Lets talk about the significant figures

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# 73 has two significant figures

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# 105.203 has six significant figures

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# 0.00234 has three significant figures

- In a number with a decimal point, zeros to the right of the last

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# 19.00 has four significant figures

- Lets make a number and then approximate it to different significant

∵ 12.7360 has 6 significant figures

∴ 12.736 ⇒ approximated to 5 significant figures

∴ 12.74 ⇒ approximated to 4 significant figures

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- Another number with decimal point

∵ 0.0546700 has 6 significant figures

∴ 0.054670 ⇒ approximated to 5 significant figures

∴ 0.05467 ⇒ approximated to 4 significant figures

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* Lets solve the problem

∵ The width of the rectangle is 2.1 cm

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3 0
3 years ago
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alexdok [17]

Answer:

6,8,9

Step-by-step explanation:

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any sum of two sides are bigger than the third side

7 0
3 years ago
Jules is measuring a patient’s height at 4 feet What is this height in inches? Answer
kondor19780726 [428]

Answer:

48 inches

Step-by-step explanation:

There are 12 inches in 1 foot. So multiply by 12 to convert from feet to inches.

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3 0
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slavikrds [6]

Answer:

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Step-by-step explanation:

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=-8/5

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8 0
2 years ago
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