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Pani-rosa [81]
3 years ago
10

How do you solve: 21 11/12 plus 17 5/12

Mathematics
2 answers:
GarryVolchara [31]3 years ago
6 0
The problem is 21  \frac{11}{12} + 17 \frac{5}{12}

Add the whole numbers

21 + 17 = 38

Match up the fractions and make sure the denominators are the same (they are)

\frac{11}{12}  +  \frac{5}{12} =  \frac{16}{12}

Break down the fraction 

16 ÷ 12 = 1 \frac{4}{12}

Reduce-You need to find a common factor for both the numerator and denominator

4 ÷ 4 = 1

12 ÷ 4 = 3

Combine everything

38 +  1\frac{1}{3} =39  \frac{1}{3}

Answer: 39  \frac{1}{3}







ArbitrLikvidat [17]3 years ago
6 0
If you would like to calculate 21 11/12 + 17 5/12, you can do this using the following steps:

21 11/12 + 17 5/12 = 263/12 + 209/12 = (263 + 209) / 12 = 472/12 = 118/3 = 39 1/3

The correct result would be 39 1/3.
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cos23^o\approx0,9205

7 0
3 years ago
Help please need those answers
icang [17]

We know: The sum of the measures of the angles of a triangle is equal 180°.

We have: m∠A =65°, m∠B =  (3x - 10)° and m∠C = (2x)°.

The equation:

65 + (3x - 10) + 2x = 180

(3x + 2x) + (65 - 10) = 180

5x + 55 = 180        <em>subtract 55 from both sides</em>

5x = 125          <em>divide both sides by 5</em>

x = 25

m∠B =  (3x - 10)° → m∠B =  (3 · 25 - 10)° = (75 - 10)° = 65°

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<h3>Answer: x = 25, m∠B = 65°, m∠C = 50°</h3>
8 0
3 years ago
If each value of the data of the poplation function is doubled which of the following is not correct?
Anna35 [415]

Answer:

The variance is doubled; C

Step-by-step explanation:

Here, we want to select what will be wrong if every number in the dataset is doubled

A. This is correct

The mean is the average of the numbers which is calculated by dividing the sum of the numbers by the count of the numbers

By doubling the numbers, we have simply doubled the sum while the count is same

So what we have as the result of the division will be 2 times what we had initially making the mean doubled

B. The mode is doubled

Yes, this is correct

The mode is the highest in frequency

Doubling all numbers will not double their frequencies but their values. So the number that was the mode in the previous case will be the same but now doubled

D. The median is doubled

This is correct

The median deals with the middle number.

Since all numbers are doubled in the present case, the median to is also doubled along side as the numbers are now twice what they were evenly

C. This is wrong

The variance has to do with the spread of data

We are actually subtracting values

Since we are doubling across board, the difference between the numbers is the same as this, the variance cannot change

We can look at this from the angle that all others are measures of central tendency looking at having a central figure while the variance is a measure of spread.

3 0
2 years ago
It is recommended that one fire extinguisher be available for every 6000 feet in the building write and solve an equation to det
Ulleksa [173]
135,000 divided by 6000 =22.5
x = 22.5
7 0
3 years ago
Read 2 more answers
The answer for your question is a 1;3 because 16/48=1/3 or 1:3.
tiny-mole [99]
1:3 = 16/48 and 1/3.

Have a nice day! :D
4 0
3 years ago
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