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
Scrat [10]
3 years ago
8

A. 18 is 20 percent of what number? B. 15 is 25 percent of what number? C. 12 is 30 percent of what number? D. 24 is 40 percent

of what number? E. 39 is 60 percent of what number? F. 78 is 30 percent of what number? Question: Represent each as an equation with x as the unknown number, and solve.
Mathematics
1 answer:
Kisachek [45]3 years ago
8 0

A. 18 is 20% of 90

B. 15 is 25% of 60

C. 12 is 30% of 40

D.  24 is 40% of 60

E. 39 is 60% of 65

F. 78 is 30% of 234

(Sorry I have to go, but hopefully I helped you)

You might be interested in
Maci is paid biweekly and earns $1500 each paycheck. What is his yearly salary?
Pachacha [2.7K]
Your answer would be 36,000 because he gets 3000 every month and every month for a year he would get your answer which would be 3000×12 which equals 36,000
5 0
3 years ago
If the point A is located at ( –5, – 3) and A’ is the image of A after being rotated about the origin by 270° (counter clockwise
Ede4ka [16]

Answer:

A'(- 3, 5 )

Step-by-step explanation:

Under a counterclockwise rotation about the origin of 270°

a point (x, y ) → (y, - x ), hence

A(- 5, - 3 ) → A'(- 3, 5 )

5 0
2 years ago
The school librarian, Mr. Marker, knows the library has 1,400 books but wants to reorganize how the books are displayed on the s
kipiarov [429]

Answer:

200 resource books

800 fiction books

400 nonfiction books

Step-by-step explanation:

Let's define x as the amount of resource books that are in the library. As he has four times as many fiction books as resource books, that means he has 4*x fiction books.

We also know he has half as many nonfiction books as fiction books, that is 1/2*4*x = 2*x nonfiction books.

We just need to find out the value of x.

We know there are 1,400 books in total and there are just 3 types of books. Therefore, if we sum all of them, we get the 1,400.

Written in math language, that is

x + 4x + 2x = 1,400

7x = 1,400

We divide by 7 on both sides and we get

7/7x = 1,400/7

x = 200

Now we replace the x with 200 to know how many books he has of each type:

Resource books = x = 200

Fiction books = 4*x = 4*200 = 800

Nonfiction books = 2*x = 2*200 = 400

Therefore, there are 200 resource books, 800 fiction books and 400 nonfiction books in the library.

The tape diagram is attached as an image.

8 0
2 years ago
Can someone help me in this question?
igomit [66]

Answer:

3347000 cm is 33.47 km to cm

3347000/64=

401.92 is the circumference

since it is pi * d

do 3347000/401.92

8327.52786624 round to

8327 full revolutions

3 0
2 years ago
Read 2 more answers
What is a correct first step in solving the inequality –4(3 – 5x)≥ –6x + 9?
Sholpan [36]

Answer:

the first step is to distribute the -4 to (3-5x)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • Complete the square on the following quadratic x^2+18x+7=0 what value is added to both sides of the equation.
    5·1 answer
  • According to the diagram below, which similarity statements are true? Check all that apply. A. ABD ~ BCD B. ABD ~ ADC C. ABC ~ A
    12·1 answer
  • -5+1/5a=4<br> solution again.
    9·1 answer
  • Identify the type of observational study (cross-sectional, retrospective, or prospective) described below. A research company us
    10·1 answer
  • The​ _______ represents the expected proportion of intervals that will contain the parameter if a large number of different samp
    15·1 answer
  • Help me with the problem please and the graph too
    6·1 answer
  • 51 is the product of diego’s score and 3<br><br> Translate into an equation
    6·2 answers
  • 5(x−2)+3(2−x). simplify
    6·1 answer
  • What is the length of the radius, r?
    13·2 answers
  • I need help again someone please help
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!