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Amiraneli [1.4K]
2 years ago
12

-1/3 = r -3/4 what is r?

Mathematics
1 answer:
Rus_ich [418]2 years ago
5 0

Answer:

5/12 = r

Step-by-step explanation:

-1/3 = r - 3/4

+3/4     +3/4

5/12 = r

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A digital scale reports a 10kg weight as weighing 8.975kg. which of the following is true?
lukranit [14]
That question is accompanied by these answer choices:

<span>A. The scale is accurate but not precise.
B. The scale is precise but not accurate.
C. The scale is neither precise nor accurate.
D. The scale is both accurate and precise.

Then you need to distinguish between accuracy and precision.

Accuracy refers to the closeness of the measure to the real value, while precision, in this case, refers to the level of significant figures that the sacle report.

The fact that the scale reports the number with 4 significant figures means that it is very precise, but the fact that the result is not so close to the real value as the number of significan figures pretend to be, means that the scale is not accurate.

So, the answer is that the scale is precise but not accurate (the option B).
</span>
6 0
3 years ago
What is 13 28/30 simplest form
Naddik [55]

Answer:

  13 14/15

Step-by-step explanation:

The numerator and denominator of 28/30 have a greatest common factor of 2. Dividing that from each of those numbers gives 14/15. This is the reduced fraction of the mixed number. The integer portion stays the same.

  13 28/30 = 13 14/15

3 0
3 years ago
4/f + 11 =29 what does f =
Delvig [45]
\frac{4}{f} + 11 = 29

First, subtract '11' from each side.
\frac{4}{f} = 29 - 11

Second, subtract '29 - 11' to get '18'.
\frac{4}{f} = 18

Third, since we are solving for f, we have to get it by itself. Multiply each side by 'f'.
4 = 18f

Fourth, once again, we need to get 'f' alone. Divide both sides by 18. 
\frac{4}{18} = f

Fifth, now that we have 'f' by itself, we can simplify the current fraction. To do so, we need to start off with listing the factors of 4 and 18 and find the greatest common factor (GCF).

Factors of 4: 1, 2, 4
Factors of 18: 1, 2, 3, 6, 9, 18

Out of the listed factors, 1 and 2 are the common factors, and since 2 is the highest number out of them, it is considered the greatest common factor. The GCF is 2.

Sixth, divide the numerator and denominator by the GCF (2).
4 \div 2 = 2  \\  18 \div 2 = 9

Seventh, we can now rewrite our fraction in simplest form and switch sides.
f =  \frac{2}{9}

Answer in fraction form: \fbox {2/9}
Answer in decimal form: \fbox {0.2222}

7 0
3 years ago
Read 2 more answers
What is n in the equation 12 + 12n = -48
Liula [17]
Hello!

To solve an algebraic equation, you must isolate the variable on one side. We’ll begin by restating the given equation:

12 + 12n = -48

Now subtract 12 from both sides of the equation:

12n = -60

Divide both sides by 12:

n = -5

We have now proven that “n” is equal to (-5).

I hope this helps!
3 0
3 years ago
17 more than some number is 57
anastassius [24]
17+x=57.
So, subtract 17 from both sides
X=40
6 0
3 years ago
Read 2 more answers
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