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
IgorC [24]
3 years ago
5

Fred cut an 84 centimeter rope into 2 parts and gave his sister one part. Fred's part is 56 centimetres long. His sister cut her

rope into 4 equal pieces. How long is one of his sister's pieces of rope
Mathematics
1 answer:
Vladimir79 [104]3 years ago
7 0
Hi,
Since Fred's part was 56 cm, his sister's was 84-56=28
She cut it into 4 parts, so 28/4=7 cm
Her rope was 7 cm long.
Hope this helps you.
You might be interested in
What is the estimate of 8244 in the hundreds
yanalaym [24]

Answer:

Step-by-step explanation: Go on answer.com if no one knows it on here. Hope this helps!!

7 0
3 years ago
Read 2 more answers
What is the absolute value of -1/3​
s2008m [1.1K]

Answer:

1/3

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
g If the economy improves, a certain stock stock will have a return of 23.4 percent. If the economy declines, the stock will hav
dusya [7]

Answer:

E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%

Now we can find the second central moment with this formula:

E(X^2) = \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965

And the variance is given by:

Var(X) = E(X^2) - [E(X)]^2

And replacing we got:

Var(X) = 413.5965 -(11.759)^2 =275.5105

And finally the deviation would be:

Sd(X) = \sqrt{275.5105}= 16.599 \%

Step-by-step explanation:

We can define the random variable of interest X as the return from a stock and we know the following conditions:

X_1 = 23.4 , P(X_1) =0.67 represent the result if the economy improves

X_2 = -11.9 , P(X_1) =0.33 represent the result if we have a recession

We want to find the standard deviation for the returns on the stock. We need to begin finding the mean with this formula:

E(X) = \sum_{i=1}^n X_i P(X_i)

And replacing the data given we got:

E(X) = 23.4* 0.67 -11.9*0.33= 11.759 \%

Now we can find the second central moment with this formula:

E(X^2) = \sum_{i=1}^n X^2_i P(X_i)

And replacing we got:

E(X^2) = (23.4)^2* 0.67 +(-11.9)^2*0.33= 413.5965

And the variance is given by:

Var(X) = E(X^2) - [E(X)]^2

And replacing we got:

Var(X) = 413.5965 -(11.759)^2 =275.5105

And finally the deviation would be:

Sd(X) = \sqrt{275.5105}= 16.599 \%

7 0
3 years ago
Help help help help help math math please please pelsss
Komok [63]

Answer:

Both of the angles will add up to 180 degrees so let’s make an equation.

5x-5+2x+10=180

First we collect like terms

5x+2x-5+10=180

Add them up

7x+5=180

Move the constant to the right

7x=180-5

7x=175

7x/7=175/7

x=25

So yes it’s true x=25.

Now we find the respective angles,

5x-5

5(25)-5

125-5

120

So angle one is 120 degrees.

2x+10

2(25)+10

50+10

60

So angle two is 60 degrees.

Now to check,

120+60=180

Step-by-step explanation:

4 0
3 years ago
Store A sold 326 out of its 570 coffee mugs. Store B sold 55% of its stock of coffee mugs. In which store was there a greater pe
maw [93]
Store A.

326/570 = 0.5719
Multiply by 100 to get the percentage
57%
5 0
3 years ago
Other questions:
  • The area of a square can be found using the equation A= s2, where A is the area and S is the measure of one side of the square.
    11·1 answer
  • How do you write two hundred and three thousandths in number form
    12·1 answer
  • Write what you notice
    14·1 answer
  • Sue wants to plan a meal with 71 grams of fat and 1755 calories. If hot dogs have 13 grams of fat and 145 calories each and if b
    13·1 answer
  • How much feet are in 760yards
    13·2 answers
  • Josiah kept track of how many songs of each Germans were played in an hour from his MP3 player accounts are displayed in the tab
    6·2 answers
  • Find the length of BC. Round your answer to the nearest tenth.
    6·1 answer
  • Y=6x−7. Identify the x-intercept.
    5·2 answers
  • Ok 100 points to answer dis question and it very easy i do dis bc i want to give someone points 4 free
    13·2 answers
  • Zero and negative exponentswrite in simplest for without zero or negative exponents- 17 ⁰
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!