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
exis [7]
3 years ago
6

Thirty percent of all the students in a school are in a Play. All except for 140 students are in the play. How many students are

in the school?
Mathematics
1 answer:
Tasya [4]3 years ago
8 0
Well, if 30% of students are in the play then 100%-30% = 70% of students are not in the play, which is also 140.

So we know:

70%*x=140

70% is also 7/70:

\frac{7}{10} x=140

divide both sides by 7 and multiply by 10:

x=20*10

x=200

there are 200 students in the school
You might be interested in
Plz help me this hard
anastassius [24]
So the graph shows a division problem. the green parts represent 1/4 of the rectangle. and that 1/4 has been cut into 5 parts. so i think it would be d.
4 0
3 years ago
Graph the equations to solve the system y=x+4 y= -x - 6
Mama L [17]

Answer:

(-5, -1)

General Formulas and Concepts:

<u>Algebra I</u>

Functions

Graphing

  • Reading a Cartesian Plane
  • Coordinates (x, y)

Solving systems of equations by graphing

Step-by-step explanation:

Where the 2 equations intersect is the solution to the systems of equations.

5 0
3 years ago
Whats the answer giving brainliest :)&gt;.
elena-s [515]

Answer:

B is the correct answer :))

because she's doing the math so that there are 40 plants in each row. So, she's trying to figure out how many rows she will need. When she does the math for 40 plants in each row, she ends up with 193 rows, and 25 corn plants left over

Step-by-step explanation:

7 0
3 years ago
Can someone help me please I’ll mark u as brainliest
Sunny_sXe [5.5K]
Hi yes what do u need help with??
6 0
3 years ago
Rita makes and sells necklaces. The materials to make each necklace cost $2.75. Last week she made 8 necklaces and wants to make
Tresset [83]

Answer:

The error she made was that she was adding x and 2.75. She should subtract 2.75 from x.

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Step-by-step explanation:

The error she made was that she was adding x and 2.75.

She should write the equation as 8 (x - 2.75) = 78; as she spends $2.75 to make a necklace.

By using the correct equation: 8 (x - 2.75) = 78

=> 8x - 22 = 78

=> 8x = 78 + 22

=> 8x = 100

=> x = 100/8

=> x = 12.5

Another mistake that she made was that she sold each for $7 assuming that she would make a profit of 78, but she should see each necklace for $12.5 so that she could make a profit of $78.

Hope this helps you.

3 0
3 years ago
Other questions:
  • How many solutions dose 3x-2x+x+2 have
    15·1 answer
  • Tim Invested $5,000 in a savings account for 6 years.He earned $550 over that fine period.What is the interest rate?
    15·1 answer
  • What is 9/41 expressed as a decimal?
    13·2 answers
  • Will the answer to this expression be POSITIVE or NEGATIVE?<br><br> - 100 - (- 98)
    6·2 answers
  • PLZZZZ HELP
    15·2 answers
  • 6. The price of a pack of toilet rolls was increased by 20%.
    14·1 answer
  • Donovan and Timothy solved two different division problems. Who solved the problem correctly?
    10·1 answer
  • I need help right now<br><br> What is the slope of the line on the graph below????
    13·1 answer
  • PLEASE HELP ASAP AND NO VIRS!
    13·1 answer
  • REWARDING 95 POINTS Which statement is true? Select all that apply.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!