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
BlackZzzverrR [31]
3 years ago
15

A problem states "There are 9 more children than parents in a room. There are 25 people in the room in all. How many children ar

e there in the room?"
Let "c" represent the number of children.

Which expression represents the number of parents?

A. c + 9
B. c * 9
C. c - 9
D. 9 - c
Mathematics
2 answers:
Neko [114]3 years ago
5 0

Answer: Option 'c' is correct.

Step-by-step explanation:

Let the number of children be 'c'.

According to question,

"There are 9 more children than parents in a room.

Let the number of parents would be 'p'.

According to question, it becomes,

c-p=9\\\\c-9=p

As there are total 25 people in the room = 25

So, it becomes,

c+p=25\\\\c+c-9=25\\\\2c-9=25\\\\2c=34\\\\c=17

Hence, there are 17 children and 17-9 = 8 parents.

Therefore, option 'c' is correct.

Margaret [11]3 years ago
3 0
The correct answer is c
You might be interested in
Hexagon DEFGHI is translated on the coordinate plane below to create hexagon D′E′F′G′H′I′:
dalvyx [7]

Answer:

A

Step-by-step explanation:

it goes down by 9 and left by 3

7 0
2 years ago
Please help me with this problem
Naya [18.7K]

Answer:

Dasha has 52 roses

Step-by-step explanation:

Rewrite the first sentence in an equation: (D= Dasha) (A= Anna)

D=4A

Rewrite the second sentence in an equation:

A+39=D

1) Substitute A+39 as D in the first equation:

A+39=4A

2) Subtract A from both sides:

3A=39

3) Divide both sides by 3:

A=13

4) Now substitute 13 as A in the second equation:

13+39=D

5) Solve:

D=52

4 0
3 years ago
the expression 8+2t can be used to find the total cost of admission and t amusement rides at a country fair. what statement is t
lara [203]

the anwser is going to be A

8 0
2 years ago
A 1200 kg car rolling on a horizontal surface has speed v = 50 km/h when it strikes a horizontal coiled spring and is brought to
tangare [24]
When the car is moving, it has Kinetic Energy. As soon as the car entercount with the spring, its Kinetic Energy will transfer to Elastic Potential Energy. 

<span>KE = EPE </span>
<span>1/2mv^2 = 1/2kx^2 </span>

<span>change the speed into m/s </span>
<span>50 km/hr = 13.9 m/s </span>

<span>1/2(1200)(13.9)^2 = 1/2k(2.2)^2 </span>

<span>now you do the math to solve for k.
k= 115926/2.42
K= 47903.30</span>
8 0
3 years ago
The equation, 3x2 6x 3y2 7y 4 = 0, represents a conic. The conic represented by the equation is a/an because.
Taya2010 [7]

The given equation is an equation of a circle because it looks similar to the general equation of a circle.

<h3>What is the general equation of a circle?</h3>

The general equation of a circle is:

x² + y² +2gx + 2fy + c = 0...........eq1

Where (-g, -f) is the center of the circle.

c is a constant

Given equation is

3x² +6x + 3y²+7y+4 = 0

Let us take 3 as common

x² + 2x+y²+7/3y + 4/3 = 0

Let us rearrange the equation

x² + y²+2x +7/3y + 4/3 = 0...........eq2

Now look at eq1 and eq2

We got that eq2 is having a similar pattern as eq1.

Therefore, The given equation is an equation of a circle.

To get more about circle visit:

brainly.com/question/1506955

3 0
2 years ago
Other questions:
  • What is the value of 2 StartRoot 6 + p EndRoot minus 3 p cubed when p = negative 2 -32 -16 32 56
    5·1 answer
  • In a random sample of 400 residents of Boston, 320 residents indicated that they voted for Obama in the last presidential electi
    13·1 answer
  • Given the function f(x) = 3x2 − 4, what is f(-2)?<br><br> A. -40<br> B. -16<br> C. 8<br> D. 32
    14·2 answers
  • A population of deer in an area is 2000 and is decreasing at a rate of 15% per year. At this rate what will the deer population
    7·1 answer
  • Systems of equations by substitution
    15·2 answers
  • Box A has 14 black pens and 6 blue pens box B has 9 black pens and 3 blue pens a pen is randomly chosen from each box list these
    12·1 answer
  • Which of the following is true about the line that passes through the points (-5, 8) and (1,8
    9·1 answer
  • How would you do this question?
    10·1 answer
  • Yesterday, Gordon had 128 baseball cards. Today, he got d more. Using d, write an expression for the total number cards he has n
    5·1 answer
  • Which best describe the relationship between the two lines describe below?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!