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
Greeley [361]
2 years ago
14

What is the percent decrease from 95 to 68 round to the nearest percent

Mathematics
2 answers:
ludmilkaskok [199]2 years ago
8 0

\qquad☀️ At first we need to find out the difference between 95 and 68.

\qquad\sf \longrightarrow  68 -95 \\

\qquad\sf \longrightarrow  -27

\qquad☀️ Now, divide the number by "the starting number.

\qquad\sf \longrightarrow \dfrac{-27 }{97}

\qquad\sf \longrightarrow -0.2842

\qquad☀️ And finally, we have to multiply the result by 100 to get it in terms of percent.

\qquad\sf \longrightarrow   -0.2842   \times 100

\qquad\red{\bf \longrightarrow   -28.42℅}

  • Hence, The answer will be -28.42℅

\qquad_________________________

Setler79 [48]2 years ago
6 0

The decrease is  (95-68) = 27 .

As a fraction, the decrease is  27/95  of the original amount.

To change any fraction to a decimal, do the division:

                            (27)  divided by  (95) = 0.2842...

To change any decimal to a percentage, move the

decimal point two places that ==> way:

                            0.2842...  =  28.42... %Answer:

Step-by-step explanation:

You might be interested in
In ΔSTU, s = 50 inches, t = 58 inches and u=27 inches. Find the measure of ∠S to the nearest 10th of a degree.
Mandarinka [93]

Step-by-step explanation:

By Cosine rule, we have

s² = t² + u² - 2(t)(u)(cosS)

=> cosS = (t² + u² - s²)/2tu

=> cosS = (58² + 27² - 50²) / (2 * 58 * 27) = 0.5086.

Therefore S = cos^-1(0.5086) = 59.4° (1d.p.)

4 0
3 years ago
Read 2 more answers
Janine wants to set up a play list with 8 songs on her IPod. She has 50 songs to choose from, including 15 songs by one directio
Kay [80]

Answer: attached below

Step-by-step explanation:

3 0
3 years ago
You need 3 sticks of butter for every 24 cookies you bake. How many sticks of butter for 16 cookies
Kay [80]

Answer: 2 sticks.

Step-by-step explanation:

Given statement: You need 3 sticks of butter for every 24 cookies you bake.

Using unitary method , the number of sticks of butter used to bake 1 cookie=\dfrac{3}{24}=\dfrac{1}{8}

Then the number of sticks of butter used to bake 1 cookie=\dfrac{1}{8}\times16=2

Hence, the number of sticks of butter used to bake 16 cookies= 2

3 0
3 years ago
Read 2 more answers
A magazine provided results from a poll of 500500 adults who were asked to identify their favorite pie. Among the 500500 ​respon
Komok [63]

Answer:

99% confidence interval is wider as compared to the 80% confidence interval.

Step-by-step explanation:

We are given that a magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.

Among the 500 respondents, 14​% chose chocolate​ pie, and the margin of error was given as plus or minus ±3 percentage points. 

The pivotal quantity for the confidence interval for the population proportion is given by;

                            P.Q.  =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of adults who chose chocolate​ pie = 14%

            n = sample of adults = 500

            p = true proportion

Now, the 99% confidence interval for p =  \hat p \pm Z_(_\frac{\alpha}{2}_)  \times \sqrt{\frac{\hat p(1-\hat p)}{n} }

Here, \alpha = 1% so  (\frac{\alpha}{2}) = 0.5%. So, the critical value of z at 0.5% significance level is 2.5758.

Also, Margin of error = Z_(_\frac{\alpha}{2}_)  \times \sqrt{\frac{\hat p(1-\hat p)}{n} }  = 0.03 for 99% interval.

<u>So, 99% confidence interval for p</u>  =  0.14 \pm2.5758  \times \sqrt{\frac{0.14(1-0.14)}{500} }

                                                        = [0.14 - 0.03 , 0.14 + 0.03]

                                                        = [0.11 , 0.17]

Similarly, <u>80% confidence interval for p</u>  =  0.14 \pm 1.2816  \times \sqrt{\frac{0.14(1-0.14)}{500} }

Here, \alpha = 20% so  (\frac{\alpha}{2}) = 10%. So, the critical value of z at 10% significance level is 1.2816.

Also, Margin of error = Z_(_\frac{\alpha}{2}_)  \times \sqrt{\frac{\hat p(1-\hat p)}{n} }  = 0.02 for 80% interval.

So, <u>80% confidence interval for p</u>  =  [0.14 - 0.02 , 0.14 + 0.02]

                                                           =  [0.12 , 0.16]

Now, as we can clearly see that 99% confidence interval is wider as compared to 80% confidence interval. This is because more the confidence level wider is the confidence interval and we are more confident about true population parameter.

5 0
3 years ago
Supposed eight out of every 20 students are absent from school lesson five days a year predict how many students would be absent
choli [55]
8 X
----- = ------
20 40000

40000/20=2000
2000*8=16000

X=16000
6 0
3 years ago
Other questions:
  • Help asap please with this question
    12·1 answer
  • Which correctly describes a cross section of the cube below? Check all that apply.
    14·1 answer
  • What is the inverse of the function f(x) = 4x + 8 a. h(x) 1/4 x - 2
    7·1 answer
  • Which of the following statements is true for all sets A,B and C? Give a proof
    8·1 answer
  • In a lab, a substance was cooled by 36°C over a period of 9 hours at a constant rate. What was the change in temperature each ho
    13·2 answers
  • Can you help me with this please???
    6·1 answer
  • For the function f(x)=5x, which ordered pair will be a point on the graph of the function?
    7·1 answer
  • ok what about this.. i'm sorry i just can't think straight at the moment i have too much going on.. 2(-10)-9y=-38 find the value
    14·1 answer
  • The sum of twice a number and three is 21. find the number
    10·1 answer
  • Given the equation y = 1/3x - 7, what are the slope and the y-intercept?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!