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
Talja [164]
4 years ago
6

if two circles have circumference of 12 pi inches and 18 pi inches,find the ratio between their radii

Mathematics
1 answer:
djverab [1.8K]4 years ago
8 0
The formula for the circumference is:
2\pi r
So to find first radius:
2\pi r = 12\pi \\  \\ \pi r = 6\pi \\  \\ r = 6
Second radius:
2\pi r = 18\pi \\  \\ \pi r = 9\pi \\  \\ r = 9
The ratio between them is:
\frac{6}{9}  =  \frac{2}{3}  = 0.66667
You might be interested in
In the figure, m<1=7x+8, m<2=4x+11, and m<4=12x+7. What is the m<1?
Licemer1 [7]
Answer:


Basic Definitions of Geometry


A collinear set of points is a set of points all of which lie on the same straight line.
A noncollinear set of points s a set of three or more points that do not all line on the same straight
line.
A Line has no end points.
A Ray has one end point.
. Line Segment has two end points
Congruent segments are segments that have the same measure.
The Midpoint of a line segment is a point of that line segment that divides the segment into two
congruent segments.

The Bisector of a line segment is any line, or subset of a line that intersects the segment at the midpoint.
An Angle is a set of points that is the union of two rays having the same endpoint.
4 0
3 years ago
What is the value of x, given that figure LMNO is a square? A. 45 B. 33 C. 27 D. 81
Degger [83]
The is answer is B. 33
8 0
4 years ago
Fill in the Table Below for the Corresponding x - valuesxy-2024
yaroslaw [1]

Here, to make your day a little better<3

7 0
3 years ago
Find each unit rate <br> 1)78mi on 3gal<br> 2)$52.50 in 7 hours<br> 3)416 mi in 8 hours
Andreas93 [3]
1) Unit Rate = 26:1
We already know that for every 3 gallons, you can travel 78 miles. Divide 78 by 3 to get 26. The 26 stands for how many miles you can travel on one gallon.

2) Unit Rate = $7.50:1
Since we already know that for every 7 hours, you earn $52.50, divide 52.50 by 7 to get 7.50. The 7.50 represents how much money you earn in 1 hour.

3) Unit Rate = 52:1
Since you can travel 416 miles in 8 hours, divide 416 by 8 to get 52. The 52 represents how many mile you can travel in 1 hour alone.

Here's a little hint too: (If I remember correctly) For unit rates, it's always going to be *any number* to 1. So even if it's a decimal or a negative, the other side of the rate always has to be 1 :)

6 0
4 years ago
Which image shows the correct position of -2 1/2on the number line?
ohaa [14]
The answer to your question would be 'A'
5 0
3 years ago
Other questions:
  • The distances (y), in miles, of two cars from their starting points at certain times (x), in hours, are shown by the equations b
    10·1 answer
  • The probability that an event will occur is 1/4. Which of the following best describes the likelihood of the event occurring?
    7·2 answers
  • A new self-serve frozen yogurt store opened this summer that sells its yogurt at a price based upon the total weight of the yogu
    13·1 answer
  • What is 39/25 as a decimal
    10·1 answer
  • Sam divided a rectangle into 8 congruent rectangles that each have the area shown what is he area of the rectangle before Sam di
    15·1 answer
  • Can someone please help me with this?
    13·1 answer
  • Trình bày nội dung của phương pháp bình phương bé nhất. Phân biệt phương pháp
    6·1 answer
  • Help pls !!!!!!!brainliest goes to first right answer
    13·1 answer
  • mr chowdhary purchased a house for rs 6.1 lakh and spent 30000 on its repairs. he then sold it rs 8 lakh. find his gain percent​
    14·1 answer
  • Jamie has a restaurant bill of $70.70. About how much money should she leave for a 10% tip?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!