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
slavikrds [6]
4 years ago
11

15 out of the 20 students at the lunch table had a sandwich. What percent of the table do those 15 students represent? Put this

in a proportion.
Mathematics
1 answer:
shusha [124]4 years ago
5 0
Hello!! So any time a question says "What percent" you can immediately write down the fraction X/100. The proportion would be 15/20= x/100. Then cross multiply to get the equation 1,500=20x. Divide both sides by 20 and x equals 75! Hope this helps!
You might be interested in
A test worth 125 points has 49 questions on it. Multiple Choice questions are worth 2 points each and short answer questions are
Charra [1.4K]

Answer:

There were 40 2-point questions and 9 3-point questions.

Step-by-step explanation:

To solve this situation, write two equations. One for the number of questions and one for the number of points.

Let x be the number of 2 point questions.

Let y be the number of 5 point questions.

x + y = 49

Now since x are each worth 2 points, the total points is 2x.

And since y are each worth 5 points, the total points is 5y.

So 2x + 5y = 125. Substitute one of the equations into the other to solve for the variables.

x + y = 49 becomes x = 49 - y. Substitute it.

2(49-y) + 5y = 125

98 - 2y + 5y = 125

98 + 3y = 125

3y = 27

y = 9

Substitute y = 9 back into the equation x = 49 - y to find x.

x = 49 - 9

x = 40

5 0
3 years ago
What is the midpoint of a segment in the complex plane with endpoints at 6 – 2i and –4 + 6i?
igomit [66]
1+2i

to find the midpoint you do it just like you did with rectangular coordinates,
add and divide by 2 the real component and the imaginary components.

\frac{6-4}{2}  =  \frac{2}{2}  = 1

and 

\frac{-2i+6i}{2} = \frac{4i}{2} = 2i
7 0
3 years ago
Find the areas of the trapezoids.
Juliette [100K]

Answer:

12 square units

Step-by-step explanation:

A = 1/2·h(sum of bases)

A = 1/2(4)(2+4)

A = 2(6) which is 12 square units

3 0
3 years ago
-1.64 as a mixed number
amm1812
<h2>Answer:</h2><h2>- 1\frac{64}{100} simplified it would be - \frac{16}{25}</h2><h2>Hope this helps!!</h2>

:)

8 0
3 years ago
Is 1/14 4/5 and 1 2/9 right from least to greatest
Luden [163]

Answer:

1/14, 4/5, 1 2/9

Step-by-step explanation:

1/14 is the smallest, 4/5 comes next, and 1 2/9 is the greatest.

3 0
3 years ago
Other questions:
  • Slope intercept form of (0,3) and (5,1)
    14·1 answer
  • the grocery store sells kumquats for $4.50 a pound and asian pears for $3.75 a pound. write an equation in standard form for the
    11·1 answer
  • What is the slope of the line described by the equation y+1=−3x
    12·1 answer
  • Please help, explain too and I will give brainliest :)
    12·2 answers
  • Does anyone know how to do this I’ve been trying for hours and I can’t find anything to help me?
    12·1 answer
  • PLEASE HELP!!! THIS IS TIMED!!!!!! PLEASE HELP ME!!!!! PLEASE!! THIS IS TIMED!!! PLEASE HELP!!!!!!
    7·2 answers
  • If Y is inversely proportional to x and y=4 when x= 100, what is the value of y when x=250
    9·1 answer
  • Find the measurement of angle ABC
    13·1 answer
  • a) Sundar bought two calculators for Rs. 1000. He sold one of them at a profit of 10% and other at a loss of 10%. If the selling
    9·1 answer
  • 20 is 25% of what number?<br><br> Enter your answer in the box.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!