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
daser333 [38]
2 years ago
15

Kim checked 20 markers. 7 of them were working. What percent of here markers were not working?

Mathematics
2 answers:
antoniya [11.8K]2 years ago
7 0

Answer:

65%

Step-by-step explanation:

Alchen [17]2 years ago
5 0

Answer:

30%

Step-by-step explanation:

You might be interested in
Gracie is shipping a cube shaped box. It measures 14in x 14in x 14in. What is the surface area of the box?
DanielleElmas [232]
14× 14 = 196 area of 1 of the squares. on a cube there are 6 squares so multiply 196 by 6

196 × 6 = 1176 sq in
8 0
3 years ago
What is the domain of f(x) = 5"?<br> ASAP
Damm [24]

Answer:

domain is all real number

8 0
3 years ago
The bowling alley charges $75.00 to reserve the location, and then $8.00 per person. Which expression represents the total cost
IRISSAK [1]

Answer:

the expression is $8.00n+ $75.00

Step-by-step explanation:

7 0
2 years ago
Have you ever been frustrated because you could not get a container of some sort to release the last bit of its contents? The ar
snow_tiger [21]

Answer:

Yes. There is enough evidence to support the claim that the remaining toothpaste is significantly is less than 10% of the advertised net content.

Step-by-step explanation:

The sample of the remaining toothpaste is: [.53, .65, .46, .50, .37].

This sample has a size n=5, a mean M=0.502 and standard deviation s=0.102.

M=\dfrac{1}{5}\sum_{i=1}^{5}(0.53+0.65+0.46+0.5+0.37)\\\\\\ M=\dfrac{2.51}{5}=0.502

s=\sqrt{\dfrac{1}{(n-1)}\sum_{i=1}^{5}(x_i-M)^2}\\\\\\s=\sqrt{\dfrac{1}{4}\cdot [(0.53-(0.502))^2+...+(0.37-(0.502))^2]}\\\\\\s=\sqrt{\dfrac{1}{4}\cdot [(0.001)+(0.022)+(0.002)+(0)+(0.017)]}\\\\\\            s=\sqrt{\dfrac{0.04188}{4}}=\sqrt{0.01047}\\\\\\s=0.102

The 10% of the advertised content is:

0.10\cdot 6.0\;oz=0.6\:oz

Hypothesis test for the population mean:

The claim is that the remaining toothpaste is significantly is less than 10% of the advertised net content.

Then, the null and alternative hypothesis are:

H_0: \mu=0.6\\\\H_a:\mu< 0.6

The significance level is 0.05.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{0.102}{\sqrt{5}}=0.046

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{0.502-0.6}{0.046}=\dfrac{-0.098}{0.046}=-2.148

The degrees of freedom for this sample size are:

df=n-1=5-1=4

This test is a left-tailed test, with 4 degrees of freedom and t=-2.148, so the P-value for this test is calculated as (using a t-table):

P-value=P(t

As the P-value (0.049) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that the remaining toothpaste is significantly is less than 10% of the advertised net content.

7 0
3 years ago
Helppp!! thank youuuuu
daser333 [38]

Step-by-step explanation:

xdjdirifkf

fkckfkrrmf

fmdkrkrmfofofk

fkfofkrorof

8 0
2 years ago
Other questions:
  • I need to know how to simplify these problems.
    14·1 answer
  • What is the 4 math methods
    15·1 answer
  • What is the surface area of a triangular prism?​
    11·1 answer
  • Why do you have to show your work
    8·2 answers
  • HELP!!
    12·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> What is the value of x?
    12·1 answer
  • El rectángulo mostrado en la derecha tiene una anchura de (x+2) y una altura de (2x+1)
    7·1 answer
  • Pls if anyone knows the answer that will be greatly appreciated :)
    6·2 answers
  • If u have 3 games then went to game stop and bought nba2k21, UFC4, Cyber punk 2027, and Avengers, then go back home and got on y
    13·1 answer
  • PLEASE ANWSER ASAPPPP
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!