1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mel-nik [20]
3 years ago
14

Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75 degrees Celsius. He looks in a reference book

and finds that the actual boiling point of ethyl alcohol is 80 degrees Celsius. What is his percent error?
Mathematics
1 answer:
MissTica3 years ago
4 0

Answer:

6.25%

Step-by-step explanation:

Percent error is calculated by taking the difference of measured value and correct value divided by correct value and multiplied by 100%.

Mathematically,

Percent error = (correct value - measured value)/correct value  * 100%

_________________________________________________

in the problem given

measured value = 75 degrees Celsius

correct value = 80 degrees Celsius ( as given in reference book)

thus,

Percent error = (80 - 75)/80 * 100%

Percent error = (5/80 )* 100% = 6.25%

Percent error calculated by him is  6.25%.

You might be interested in
Please help me if you can ​
IRISSAK [1]

Answer:

8π in

64π mm²

Step-by-step explanation:

The circumference of a circle is equal to 2πr, where r is the radius.

2π(4) = 8π ≈ 25.132

The area of a circle is equal to πr²

π(8)² = 64π ≈ 201.062

8 0
2 years ago
Find the percent change from $20 to $25
Viktor [21]

Answer:

20%decrease

Step-by-step explanation:

sorry I'm bad at explaining things

5 0
2 years ago
What is x+3y=6 what is the x
Ymorist [56]
X=-3y+6 That is the answer.
3 0
3 years ago
Is 1/3 closest to -1 or 0?
Nata [24]

Answer:

1/3 is closer to 0 than it is closer to -1

Step-by-step explanation:

<------------------(-1)--0---(1/3)----------------->

As you can see here, 1/3 is closer to 0 than -1

7 0
2 years ago
Read 2 more answers
Simplify.<br> -sqrt m^4n^7
Delvig [45]

Answer:

-m^2 |n|^3 sqrt(n)

Step-by-step explanation:

-sqrt( m^4n^7)

We know that sqrt(ab) = sqrt(a) sqrt(b)

-sqrt(m^4) sqrt(n^7)

The sqrt(m^4) = m^2

The sqrt(n^7) = sqrt(n^6) sqrt(n) = |n|^3 sqrt(n)  We take the absolute value because if n is negative, n^6 is postive, but n^3 is negative

-sqrt(m^4) sqrt(n^7)

-m^2 |n|^3 sqrt(n)


3 0
2 years ago
Other questions:
  • At a video store, renting 5 new releases costs $22.50 and renting 4 old videos costs $10.00. How much would it cost to rent 2 ne
    9·1 answer
  • Is the answer right for number 14 if you answer I will be your friend and give you easy answers so you can get points plus I wil
    12·1 answer
  • on a string of red and blue lights the red light light blink every 3 seconds and thhe blue lights blink every 5 seconds how many
    14·2 answers
  • Help with this number 3)is 2×=-8
    5·1 answer
  • A playground is being designed where children can interact with their friends in certain combinations. . If there is 1 child, th
    15·2 answers
  • Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a fl
    13·1 answer
  • PLEASE Help I need the area in cm2 THanks Have a nice day!!
    12·1 answer
  • Please help with this word problem! plz
    7·2 answers
  • Melanie is paid $15 per hour working as a police dispatcher. This year she will be getting 12% raise. By what amount will her ho
    6·2 answers
  • Please answer the following essay question:
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!