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
yawa3891 [41]
2 years ago
8

There are 12 boys and 15 girls in your class for new students three boys and one girl join your class what is the ratio of the c

lass before the new students and after the new students arrived
Mathematics
2 answers:
Finger [1]2 years ago
6 0
Before the new kids the ratio of girls to boys is 15:12 because there are 15 girls and 12 boys now you can simplify by dividing 15 by 3 and 12 by 3 to get 5:4 as your simplified ratio. As far as after the new kids. Since there is 1 new girl you do 15+1 to get 16 and there are 3 new boys so you do 12+3 to get 15 now 16:15 is already in simplest form so your answer is:

Before: 15:12 simplified as 5:4
After 16:15
Aloiza [94]2 years ago
6 0

Answer:

4/5 : 15/16

Step-by-step explanation:

Ok let's write the ratio of boys to girls before the new students arrived

12 : 15

Simplify :

12/3:15/3

4 : 5

Lets write the ratio of students after the new students arrived

15 : 16

Cannot be Simplified.

We have two ratios

Lets write them as fractions

4 : 5 = 4/5

15 : 16 = 15/16

The new ratio should be

4/5:15/16

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

You might be interested in
How many different outcomes are possible for seven people seated in chairs arranged in a line?
Sveta_85 [38]
Person A could have any SIX dif. people sitting to her left. the person on A's left can have FIVE dif.people sit on his left. that person could have any of the remaining FOUR to her left and so on to the last person. so, there are 6x5x4x3x2x1= 720 possible arrangments. 
6 0
2 years ago
Find the equation of a line passing through (3, -5) that is parallel to 2x+6y=10
Zina [86]

Answer:

The equation of the line would be y = -1/3x - 4

Step-by-step explanation:

In order to find this, we first need to find the slope of the original line. We do this by solving for y.

2x + 6y = 10

6y = -2x + 10

y = -1/3x + 5/3

Now that we see the slope as -1/3, we know the new line will have the same slope thanks to the definition of parallel lines. So, we can use this slope and the point in point-slope form to find the equation.

y - y1 = m(x - x1)

y - -5 = -1/3(x - 3)

y + 5 = -1/3x + 1

y = -1/3x - 4

4 0
3 years ago
Pick the correct description of the line 2y = 10
lana [24]
2y = 10
y = 10/2
y = 5 <==horizontal

this is a horizontal line. Anytime you have y = an integer, it is horizontal...and if u have x = an integer, it is a vertical line.
8 0
3 years ago
Read 2 more answers
Factor x^2a^2 + 3xa^2 + 2a^2. Show your work.
kotegsom [21]
x^2a^2 + 3xa^2 + 2a^2= \\ a^2(x^2+3x+2)= \\a^2(x^2+2x +x+2)= \\a^2(x(x+2)+(x+2))= \\a^2(x+2)(x+1)
4 0
3 years ago
Tiana would like to buy cone-shaped hats for her birthday party. She wants hats with the largest volume, since they look bigger.
Alexus [3.1K]

Probably the ones that are big..

7 0
2 years ago
Read 2 more answers
Other questions:
  • Use the substitution method to solve the system of equations. Choose the correct ordered pair. 
    10·1 answer
  • What does it mean to say we have a base ten system? Be specific. Use examples.
    13·1 answer
  • The cost of printing a store flyer is $450 for 1000 copies and $880 for 2000 copies.
    15·1 answer
  • A cube has a volume of 8 inches.What is the length of each of the cube?
    7·2 answers
  • How to check this answer 14+17=31
    14·1 answer
  • Find a, b , and h so that f(x)= a sin (b(x-h))<br> f(x)=5cosx+2sinx
    9·1 answer
  • In a series RL circuit, ET = 120 V, R = 40 Ω, and XL = 30 Ω. How much is EL?
    14·1 answer
  • NO LINKS!! Can someone please help? I'll give 25 points because I'm feeling nice. Thanks! Answer will also be marked Brainliest!
    14·1 answer
  • In a sewage treatment plant, a large concrete tank initially contains 440,000 liters of liquid and 10,000 kg of fine suspended s
    14·1 answer
  • kerry and four friends want to the movies they purchased sodas costing $5.50 each and hotdog each cosing $12.75 they each contri
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!