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
AfilCa [17]
3 years ago
11

In a class there are 40 students 30 are boys and what is the percentage of girls ....​

Mathematics
1 answer:
Artyom0805 [142]3 years ago
6 0

Answer:

25%

Step-by-step explanation:

Total= 40 students

boys +girls= 40

30 +girls= 40

number of girls

= 40 -30

= 10

Percentage of girls

=  \frac{10}{40}  \times 100\% \\ =  25\%

Alternatively,

percentage of girls

= 100% -(percentage of boys)

= 100\% - ( \frac{30}{40}  \times 100\%) \\  = 100\% - 75\% \\  = 25\%

You might be interested in
If there was 100 birds on a nest and a killer kills one how much are left on the nest?
icang [17]
99.....the killer only killed one but i feel this is a riddle that i dont get lol
6 0
3 years ago
Read 2 more answers
20 PTS PLEASE HELP ASAP!
gtnhenbr [62]

Answer:

Slope is 1/2

Step-by-step explanation:

Use the slope formula. Say S = the 1st point and T = the 2nd point.

m = 20 - 10                    10                 1

     ------------      =      -----------    =      ---

      20 - 0                     20                2

The equation for slope is also y = mx + b

m is the slope, b is the y-intercept.

Therefore, if you look at the 1st choice, you can see that 1/2 is in the place of m, meaning that 1/2 is the slope of line ST

I dunno how to do the other way

7 0
3 years ago
Please help explanation if possible
Novay_Z [31]

Answer:

Equation pf parallel line y = 4x + C

now this line pass through (-2,4) so it satisfies the eqn

Then, 4 = -8+C

C = 12

<h2>Hence required equation:- </h2>

<h2>y = 4x+12.....</h2>

hope it helps

4 0
2 years ago
Read 2 more answers
The baseball diamond at a playground is a square with sides that measure 90 feet, About how long would a straight line be from h
Nina [5.8K]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
A cooler measures 30 cm wide, 30 cm long, and 25 cm tall. Which is the correct unit of measurement to use when describing the am
Maurinko [17]
Since we are using 3 sides of measurement and are looking for a volume, or a 3rd dimensional amount, the correct unit of measure is going to cm3, which is B.).
I hope this helps!
8 0
3 years ago
Other questions:
  • The longer base of an isosceles trapezoid measures 23 ft. The nonparallel sides measure 9 ft, and the base angles measure 80°. F
    12·2 answers
  • If cot0= 1.5 find tan0
    14·1 answer
  • Which equation has the same solution as x^2-6x-14=0
    5·2 answers
  • If a scale factor is less than 1, then what does my figure get? (Geometry)
    15·1 answer
  • BRAINLIEST AND 20 POINTS FOR CORRECT ANSWER WITH EXPLAINATION!
    10·1 answer
  • PLEASE HELP ME I WILL MARK YOU BRAINLIST
    12·2 answers
  • 6(8x -2)<br><br> plz help me...
    5·2 answers
  • What expense category could be eliminated through good financial planning?
    10·1 answer
  • In the equation 2r - 7 = 15, what value of r makes this equation true?
    13·1 answer
  • PRECAL PLEASE HELP
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!