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
DochEvi [55]
3 years ago
5

A CD makes 58 1/2 revolutions in 3/4 min.

Mathematics
2 answers:
shusha [124]3 years ago
8 0
The most important thing in this problem is understanding and then dividing the given units properly. The first thing that is given is that the CD makes 58 1/2 revolutions in 3/4 minutes. We have to first simplify the number of revolutions made by the CD. This will make the problem in hand very easy.
Number of revolutions made by the CD = 58 1/2
                                                               = 117/2
Then
The unit rate = (117/2)/(3/4)
                     = (117 * 4)/(2 * 3)
                     = (117 * 2)/3
                     = 39 * 2
                     78
So the unit rate is 78 revolutions per minute.
murzikaleks [220]3 years ago
5 0
78 revolutions per minute 58.5 I divided it by 3 to get 19.5 Then multiplied 19.5 by 4 to get the amount of rotations in a minute
You might be interested in
Line L is mapped onto the line t by a dilation centered at
STatiana [176]

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Step-by-step explanation:

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size

  • If the equation of a  line is ax + by = k is dilated, with center origin and scale factor k, then the equation of the image of the line is kax + kby = kc
  • The line and its image are parallel
  • The coordinates of a general point on the image is (kx , ky)

Line L is mapped onto the line T by a dilation centered at the origin and  a scale factor of 3.

That means lint T is the image of line L after dilation

∵ The equation of line L is 2x - y = 7

∵ Line L is dilated by scale factor 3 and centered at origin

- That means multiply the equation of line L by 3 to find the

   equation of line t

∵ Line T is the image of line L after dilation

∴ The equation of line T is (3)(2x) - (3)(y) = (3)(7)

∴ The equation of line T is 6x - 3y = 21

<em>Very important note:</em>

The equation of line T is the same with equation of line L but multiplied by the scale factor 3 ⇒ L and T are coincide lines (same line)

That means the equation of lines T and L is 2x - y = 7

The equation of line T is 2x - y = 7 ⇒ (6x - 3y = 21)

Learn more:

You can learn more about dilation in brainly.com/question/2480897

#LearnwithBrainly

7 0
3 years ago
Help please! 20 points!
vladimir1956 [14]

x+100+3x=180\\4x=80\\x=20

5 0
3 years ago
Read 2 more answers
Harley is on a trip with her dad. Her dad tells her that they've traveled 182.6 miles and they are 83% of the way to their desti
Natali5045456 [20]
0.83x=182.6

x=182.6/0.83

x=220 miles total trip length.
8 0
3 years ago
The complete factorization of 12x² + 4x - 8 is:
PolarNik [594]

Answer:

D is the correct answer.

8 0
2 years ago
PLS HELP
solmaris [256]

Answer:

I think the number of terms are 3

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of the expression?divide 57/20
    11·2 answers
  • Product of a 3-digit number and a 1-digit number
    11·2 answers
  • My math teacher gave me a integer math problem and here is the example please respond i am so confused . Sonny has $75 to spend.
    11·2 answers
  • Heyy! i’ll give brainliest please help thanks
    5·2 answers
  • Asher is pet sitting for 1/5 dogs. He only has of a bag of dog food left for the day. If each dog gets the same amount, what fra
    7·1 answer
  • A=a-b/5+c solve for a
    13·1 answer
  • A new version of the Medical College Admissions Test (MCAT) was introduced in spring 2015 and is intended to shift the focus fro
    5·1 answer
  • Courtney is ordering nachos at a restaurant, and the server tells her that she can have up to three toppings: pico de gallo, oni
    14·1 answer
  • A school district has $6,588 to spend on new chairs. If each chair is $36, how many chairs will the district be able to buy?
    7·2 answers
  • 16/3x-4=5/x solve for x
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!