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
eduard
3 years ago
15

in a chemistry class, the ratio of girls to boys is 2 to 1. if there are 30 students in the class how many girls are there​

Mathematics
1 answer:
VLD [36.1K]3 years ago
5 0
Firstly, we can simplify the ratio of boys to girls to
1
:
2
.
Then, to find out how many students each ratio represents, we add up
1 and 2 to get 3
(1+2=3)
By dividing 3
by the number of students, we can find how many students ONE ratio represents:
24 3=8

So ONE ratio is equal to 8
boys. Since our simplified ratio of boys to girls is
1:2
already, we do not have to do further multiplying - the number of boys is simply 8.
For the girls, simply multiply 2 by 8 to get 16

Check: 8 boys + 18 girls = 24students
You might be interested in
2,776,714 rounded to the greatest place value is?How many zeros are in the rounded number?The estimated speed of light using a p
olga_2 [115]

Answer:

One third of 24

Step-by-step explanation:

because 3 is a whole number smaller than 4 so the answer would be 3/24 not 4/16.  

8 0
2 years ago
(5+ w)(w + 4) =<br> polynomial stanford form
zavuch27 [327]
9W + W^2 + 20 using the foil method
7 0
3 years ago
Helpity helpityhelpity help
Marizza181 [45]

a) 24% said they wanted to learn french.

To find total number of students surveyed divide the number of students that want to learn French by the percentage:

12 / 0.24 = 50

There were 50 students surveyed.


b) 36% wanted to learn Spanish, multiply 50 by 36%

50 * 0.36 = 18

18 students wanted to learn Spanish.

7 0
3 years ago
Read 2 more answers
Please help me and ill mark you brainlest
dedylja [7]

Answer:

D

Step-by-step explanation:

Multiply by 3

4 x 3 = 12

9 x 3 = 27

8 0
2 years ago
Read 2 more answers
Which of the following angle measurements would you find in an equilateral triangle?
lesya692 [45]

Answer:

D. 60, 60, 60

Step-by-step explanation:

In an equilateral triangle, all sides are equal and equal to 180 when added together. because 60×3 is equal to 180, D is the right answer. I hope this helps you!

3 0
2 years ago
Other questions:
  • How do you prove a parallelogram using these 2 triangles, somebody needs to explain this to me?
    13·1 answer
  • a toy copany want to sell 1.600 toy airplanes this year. so far they have sold 600. what percant of thee sales goal have they re
    11·1 answer
  • PLS HELP 20 POINTS
    11·1 answer
  • 2/3g + 1/2g = 14<br><br>what is g?
    5·2 answers
  • 22 points ) plz help me :Sara earns 5% simple interest on her 2,500 certificate of deposit how much simple interest will Sara ea
    7·1 answer
  • The circumference of a circle is 18 m. Find its diameter, in meters.<br> quick answers please
    10·1 answer
  • The national mean SAT score in math is 550. Suppose a high school principal claims that the mean SAT score in math at his school
    8·1 answer
  • A customer cash a 1000.00 check at 3 percent how much does he receive back?
    10·1 answer
  • BRAINLIEST! ANSWER MY LATEST QUESTION FOR BRAINLIEST ON THIS AND THAT QUESTION! MUST BE CORRECT THO
    12·2 answers
  • What is the RANGE of this graph
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!