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4 years ago

Solve for n. 1/2n+3/4n=12

1 answer:

7 0

First you add 1/2 and 3/4:
5/4n

5/4n = 12 so you divide both sides by 5/4
That gives you the answer of n= 9.6.

Hope this helped :)

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Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75.0°C. He looks i a reference book and finds tha

aniked [119]

The percent error is 6.25%

Step-by-step explanation:

Percent error is given by:

$Percent\ Error=\frac{|Experimental\ Value -\ Accepted\ value|}{Accepted\ value}*100$

Here,

Accepted value = 80.0°C

Experimental Value = 75.0°C

Putting the values in the formula

$Percent\ Error=\frac{|80.0 -75.0}{80.0}*100\\=\frac{|5.0|}{80.0}*100\\=\frac{5.0}{80.0}*100\\=0.0625*100\\=6.25\%$

Hence,

The percent error is 6.25%

Keywords: Percentage, Error

Learn more about percent error at:

#LearnwithBrainly

8 0

4 years ago

84 people attended a play. Of the 84 students, 1 /3 of them were parents. How many parents were in the audience?

Lunna [17]

Answer: 28

Step-by-step explanation:

(1/3)*84=28

5 0

3 years ago

Read 2 more answers

What are prime numbers? can you give an example?

Novosadov [1.4K]

Answer:

Prime numbers are numbers that only two factors, 1 and itself. Example: 2,3,5,7,11,13,17,19...............47 etc l. NB: 1 is not a prime number. All the multiples of the prime numbers are composite numbers

3 0

4 years ago

Can someone help me with this math problem

kondaur [170]

19.125 mi is the answer

5 0

4 years ago

PLZ HELP ASAP!!! NEED TO FINISH!!!! BRAINLIEST ANSWER IF CORRECT!

scZoUnD [109]

Answer:

about 10,652 balls

Step-by-step explanation:

The length of the court is 94 ft × 12 in/ft = 1128 in. That is 1128/8.5 ≈ 132.7 times the diameter of a ball.

The width of the court is 50 ft × 12 in/ft = 600 in. That is 600/8.5 ≈ 70.6 times the diameter of a ball.

When the balls are hexagonally packed, their row spacing is only (√3)/2 ≈ 0.866 times the ball diameter, so by cutting out one ball per row on alternate rows, about 15% more rows can be put in place. That is, there can be 81 rows of balls, alternating between 132 and 131 balls per row.

The number of balls that fit in that arrangement is ...

132×81 - 40 = 10,652

___

Since there is some extra space beyond the last row, the balls can be "randomized" and a few more balls added, probably at least 2 or 3.

4 0

3 years ago