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
Svetlanka [38]
3 years ago
12

two-thirds of the 27 students in the class had perfect attendance for the first half of the year. How many students had a perfec

t attendance record? HELP
Mathematics
1 answer:
DENIUS [597]3 years ago
8 0

Answer:

18

Step-by-step explanation:

1/3 of 27 is 9 so 2/3 is 18

You might be interested in
Which numbers are equivalent to 3/10
Sedbober [7]

Answer:

Multiply numerator and denominator with same number to gwt the answers . There are infinitely many numbers

3/10 × 2/2 = 6/20

3/10 × 5/5 = 15/50

3/10 × 10/10 = 30/100

And so on

8 0
3 years ago
Find the inverse of the function f f (x )<br><br> equals 9 x + 7
MrMuchimi

<em>Note: Your question seems a little bit ambiguous. So, I am assuming the given function f(x)=9x+7.</em>

<em>Thus, I am solving based on it. It would still clear your concept. </em>

Answer:

The inverse of f(x)=9x+7

  • \frac{x-7}{9}

Step-by-step explanation:

Given the function

f(x)=9 x + 7

A function g is the inverse of function f if for y=f(x), x=g(y)

Replace x with y

x=9y+7

solve for y

9y=x-7

y=\:\frac{x-7}{9}

Therefore,

The inverse of f(x)=9x+7 is:

  • \frac{x-7}{9}

i.e.

\mathrm{Inverse\:of}\:9x+7:\quad \frac{x-7}{9}

6 0
3 years ago
Which phrase can be represented by an equation? twice as much as a number 12 less than a number half of a number is 15 the diffe
jeka57 [31]

Answer:

Half of a number is 15

Step-by-step explanation:

First of all, add commas between each option so it's easier to read I had a hard time figuring out what the options were because of this.

An equation is a statement that the values of two mathematical expressions are equal. An expression is a collection of symbols that jointly express a quantity. This means there has to be an equal sign when the phrases are put into numerical form.

Twice as much as a number:              2X

12 less than a number:                        X - 12

Half of a number is 15:                        X/2 = 15

The difference of 20 and a number: 20 - X

As you can see, only one of these phrases is an equation by definition, and that is X/2 = 15, or half of a number is 15. That's because it's the only one that values two expressions as equal.

4 0
3 years ago
Read 2 more answers
Multiply (-1/2)(-1/2)
guajiro [1.7K]

Answer:

0.25 or 1/4

Step-by-step explanation:

2 negatives equal a positive

5 0
2 years ago
What number multiplied by itself 3 times equals 9?
Harlamova29_29 [7]
The answer is 3 3x3x3=9

Hope this helped:)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Tickets for a play were $2 for each child and $4 for each adult. At one showing of the play, one adult brought 4 children and th
    12·2 answers
  • Solve by substitution. <br> 3x-y=5<br> -2x+y=0
    7·2 answers
  • What is the solution for x in the equation (-4(x+1)+7x=8)?
    15·1 answer
  • I need help with Tuesday hw
    10·1 answer
  • The area of a room is 600 square feet. The length is (x + 5) feet and the width is (x + 4) feet. Find the dimensions of the room
    11·2 answers
  • 2. A coat costs 3 times as much
    10·1 answer
  • Find the area of the figure.<br> A-56cm^2<br> B-88cm^2<br> C-112cm^2<br> D-384cm^2
    11·1 answer
  • FREE BRAINLIEST!! ill also answer questions that you have posted if you answer these 2 questions correctly!! ((Answer both quest
    9·2 answers
  • The size of the bulletin board is 8.47m. The teacher wants to divide it into 7 sections. What will be the size of each section?
    13·1 answer
  • Which equation best represents the line graphed above?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!