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
Angelina_Jolie [31]
3 years ago
11

**Round to the nearest tenth Level ll: John missed 14 points on an 80 point science test. What percentage did he get?​

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
6 0

Answer:

82.5% = 66/80

You might be interested in
Please Help Me ASAP I Need Real Help
alekssr [168]
I think it’s A. Hope it’s right. Sorry if it’s wrong.
7 0
2 years ago
An electrical rm manufactures light bulbs that have a life span that is approximately normally distributed. The population stand
stira [4]

Answer:

The 't' test statistic = 1.46 < 1.69

The test of hypothesis is H 0 :μ = 800 is accepted

A sample of 30 bulbs are found came from average µ= 800

Step-by-step explanation:

Step 1:-

Given population of mean μ = 800

given size of small sample n =30

sample standard deviation 'S' = 45

Mean value of the sample χ = 788

Null hypothesis H_{0} =µ  =800

alternative hypothesis  H_{1} = µ ≠ 800

<u>Step 2</u>:-

The 't' test statistic t =  \frac{x-μ}{\frac{sig}{\sqrt{n} } }

                             t = \frac{788-800}{\frac{45}{\sqrt{30} } }

                       t = \frac{12}{8.215} = 1.4607

<u>Step 3</u>:-

The degrees of freedom γ = n-1 = 30-1 =29

From "t" value from table at 0.05 level of significance ( t = 1.69)

The calculated value t = 1.4607 < 1.69

Therefore The null hypothesis H_{0} ' is accepted.

<u>conclusion</u>:-

A sample of 30 bulbs are came found from average µ= 800

7 0
3 years ago
Solve the equation. –x 8 3x = x – 6 x = –18 x = –14 x = 2 x = 4
LenKa [72]

The value of the variable x in the equation –x + 8 + 3x = x – 6 is - 14.

<h3>How to find variable in an equation?</h3>

The variables of an equation can be found as follows:

–x + 8 + 3x = x – 6

The variable in the equation is x.

Therefore,

–x + 8 + 3x = x – 6

combine like terms on the left side

-x + 3x + 8 = x - 6

2x + 8 = x - 6

subtract x form both sides of the equation

2x - x + 8 = - 6

x + 8 = -6

subtract 8 from both sides

x = -6 - 8

x = - 14

learn more on equation here: brainly.com/question/1347990

#SPJ4

3 0
2 years ago
You know that a rope is no more than 150 feet long. You need to cut the rope into 3 pieces.
Sunny_sXe [5.5K]

Answer:

80 ft

Step-by-step explanation:

<em>hey there,</em>

<em />

< We know that the rope is 3 pieces long. To make this into an equation, let's just write x + y + z = 150.

Assuming "y" is our second piece, we can tell y = 2x, because it is two times the size of the first piece, which is "x". We also know "z" (our third piece): z = 30.

We can try inputting all the things we know now. x + (2x) + 30 = 150. From here, we can find that x = 40. Since y is our second piece, y = 2x, so 2 x (40) = 80. The second piece would be 80 feet long. >

<u>Hope this helped! Feel free to ask anything else.</u>

7 0
3 years ago
How can you use the sign of the points to determine location? please help and i will give brainliest :D
Vladimir [108]

To determine the location of a point on a graph, the first number of the ordered pair is a x-coordinate which means the first number you would look for would be the horizontal line, or the x-axis. The second number is the y-coordinate which means that you would look on the vertical line, or the y-axis. You would go on the horizontal line first, then from there go up to the y-coordinate and place your point. (I'm sorry if it's long but you can try to shorten it.)

Hope this helped!

Have a nice day!

8 0
3 years ago
Other questions:
  • What is the answer to the problem, -7^2?
    9·2 answers
  • PLEASE ANSWER<br><br> What is an outlier in math?
    11·1 answer
  • Self-fulfilling prophecy is a primary example of the capability of language to
    8·2 answers
  • a machine takes 4.2 hours to make 7 parts . At that rate how many parts can the machine make in 28.8 hours.
    10·1 answer
  • Waiting times to receive food after placing an order at the local subway sandwich shop follow an exponential distribution with a
    10·1 answer
  • Someone help me pls and thanks
    11·1 answer
  • 127.86<br> +78.95<br> +23.09
    14·2 answers
  • If P is the incenter of triangle JKL, find the measure of JKP.
    14·1 answer
  • Anyone help me please
    6·1 answer
  • HELP, I WILL GIVE YOU MANY POINTS (60)!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!