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
slavikrds [6]
3 years ago
7

assume these situations are proportional. write and solve by usinmg a proportion. Everardo paid $1.12 for a dozen eggs at his lo

cal grocery store, Determine the cost of 3 eggs?
Mathematics
1 answer:
Bingel [31]3 years ago
8 0
12 eggs for $1.12
3 eggs for $?
As you can see, to get from 12 eggs to 3 eggs, you divide by 4, so do the same with $1.12 to get $0.28
The cost of 3 eggs is $0.28
You might be interested in
Write an equation in standard form for a line that passes through (2,2) and (0,-3).
asambeis [7]
So,

The standard form is:
y = mx + b

First, we find "m," the slope.  Subtract the y-coordinates from each other.  Do likewise with the x-coordinates.

2 - -3 = 5
2 - 0 = 2

Slope = 5/2

y= \frac{5}{2} x+b

Now, we can substitute the second solution into this equation for x and y and solve for "b."

-3= \frac{5}{2} *0+b

-3= b

Now we have our complete equation.

y= \frac{5}{2} x-3
8 0
2 years ago
PLS HELP ASAP ILL GIVE BRAINLKEST THANKS
pshichka [43]

Answer:

C

Step-by-step explanation:

y = 10

x = 8

The y intercept is 0 and the line runs through (0,0)

m = y / x This formula can only be used when the y incept is 0.

m = 10/8

m = 5/4

Equation

y = 5/4 x

3

8 0
2 years ago
Please consider the following values for the variables X and Y. Treat each row as a pair of scores for the variables X and Y (wi
Studentka2010 [4]

Answer:

The Pearson's coefficient of correlation between the is 0.700.

Step-by-step explanation:

The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.

The formula to compute correlation between two variables <em>X</em> and <em>Y</em> is:

r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}

The formula to compute covariance is:

Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y

The formula to compute the variances are:

V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}

Consider the table attached below.

Compute the covariance as follows:

Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y

                 =(5\times 165)-(30\times 25)\\=75

Thus, the covariance is 75.

Compute the variance of X and Y as follows:

V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\=(5\times 226)-(30)^{2}\\=230\\\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}\\=(5\times 135)-(25)^{2}\\=50

Compute the correlation coefficient as follows:

r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}

            =\frac{75}{\sqrt{230\times 50}}

            =0.69937\\\approx0.70

Thus, the Pearson's coefficient of correlation between the is 0.700.

5 0
3 years ago
Will give Brainliest! What is the simplified form of the seventh root of x to the fifth power times the seventh root of x to the
jekas [21]

Answer:

  2) x times the seventh root of x cubed

Step-by-step explanation:

  \displaystyle\sqrt[7]{x^5}\cdot\sqrt[7]{x^5}=\sqrt[7]{x^{5+5}}\\\\=\sqrt[7]{x^{7+3}}=\sqrt[7]{x^7}\cdot\sqrt[7]{x^3}\\\\=x\sqrt[7]{x^3}

4 0
3 years ago
1000 jumps in 3 hours. How many jumps are there per hour?
DiKsa [7]
Just multiply 1000 jumps by 3 to get your answer.
6 0
3 years ago
Read 2 more answers
Other questions:
  • Among the eighth-graders in Michael's school, 70% have siblings. The eighth-grade class in 5/6 the size of the seventh-grade cla
    13·2 answers
  • The height of a soccer ball that is kicked from the ground can be approximated by the function:
    7·1 answer
  • Jerry invested $14,000 in a certificate of deposit at 5%. He also put $2,500 in a savings account at 3%. How much interest will
    9·1 answer
  • Help plz. If correct, I follow you or mark brainlist
    15·1 answer
  • How is solving literal equations like solving equations in one variable
    8·2 answers
  • What is the percent of increase from 1.6 to 3.2
    13·2 answers
  • Simplify: -3x2 + 5x -22 + 4x2 - 9x
    7·1 answer
  • Help me!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Use the original price and the markup to find the retail price.
    14·1 answer
  • Is there a dilation the Maps shape lll onto shape ll if so what is the scale factor and is it in enlargement or reduction?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!