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
viktelen [127]
3 years ago
7

How to compare rates and ratios

Mathematics
1 answer:
Leviafan [203]3 years ago
6 0
Ratios don't have to be "per" something, while rates are "per" something. 

Ratios compare 2 or more values, as well as rates. 
You might be interested in
Solve using the substitution method. Y+2x=7 14-4x=2y
gizmo_the_mogwai [7]
Hello

14-4x=2y   divide 2 to both sides VVVVV7-2x=y    you will need this on the next step-----------------------------------------------------y+2x=7y=7-2x(7-2x)+2x=7 ------->  7-2x+2x=7                               7=7Have a nice day
8 0
3 years ago
A 90% confidence interval for the mean height of students
Westkost [7]

Answer:

ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635

And the best answer on this case would be:

b) m = 4.635

Step-by-step explanation:

Let X the random variable of interest and we know that the confidence interval for the population mean \mu is given by this formula:

\bar X \pm t_{\alpha/2} \frac{s}{\sqrt{n}}

The confidence level on this case is 0.9 and the significance \alpha=1-0.9=0.1

The confidence interval calculated on this case is 60.128 \leq \mu \leq 69.397

The margin of error for this confidence interval is given by:

ME =t_{\alpha/2} \frac{s}{\sqrt{n}}

Since the confidence interval is symmetrical we can estimate the margin of error with the following formula:

ME = \frac{Upper -Lower}{2}

Where Upper and Lower represent the bounds for the confidence interval calculated and replacing we got:

ME= \frac{69.397-60.128}{2}= 4.6345 \approx 4.635

And the best answer on this case would be:

b) m = 4.635

4 0
3 years ago
When y=-2, what kind of line does it have horizontal or vertical
Rashid [163]

Answer: Horizontal

Step-by-step explanation: The equation <em>y = -2</em> can be thought of as y = 0x - 2. So our line has a slope of 0 and a y-intercept of -2.

To graph it, we start with the y-intercept, down 2 units on the y-axis. Now, if the slope of a line is 0, then the line must be flat or horizontal.

So we just draw a horizontal line through the y-intercept of -2.

In fact, when the equation of any line reads y = a number, it's graph will always be a horizontal line. For example, y = 3, y = -10, y = -8 and so on.

Image provided below.

8 0
3 years ago
Solve your equations below and right the algebraic steps, n/12 = 10
sdas [7]
\frac{n}{12}=10

Multiply both sides of the equation by 12

\frac{n}{12}\times12=10\times12n=\text{ 120}

7 0
1 year ago
7k + 5 – 2 = 7k + 3 0<br><br> Anyone sorry for so many i just need help
mamaluj [8]

Answer:

K=27

Step-by-step explanation:

the answer is 27

6 0
3 years ago
Other questions:
  • Mrs. Robinson is riding the stationary bike at the gym. She completes 24 9/10 wheel rotations every 1/5 minute. What is Mrs. Rob
    11·1 answer
  • Will give brainliest answer if correct
    14·1 answer
  • I will mark Brainliest Please help worth 30 pointsThe distance, y, in centimeters, of an ant from a hole in the tree for a certa
    13·2 answers
  • Help? Answer is there so you know if your right or not
    6·1 answer
  • Simplify the expression below. 4^5 x 4^3
    8·2 answers
  • Plzzzz help me!!!
    12·1 answer
  • During a certain 9-year period, the Consumer Price Index (CPI) decreased by
    6·1 answer
  • “a sea bird is 28 meters above the surface of the ocean. What is its elevation?”
    9·2 answers
  • 10 to the power of 6 as an integer
    11·2 answers
  • 30 POINTS FOR THIS QUESTION
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!