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
hjlf
3 years ago
7

there are 270 at Colfax Middle School, where the ratio of boys to girls is 5:4. there are 180 students at Winthrop Middle School

where the ratio of boys to girls is 4:5. The two schools hold a dance and all students from both schools attend. What fraction of the students at the dance are girls? Make sure to show all work.
Mathematics
1 answer:
ruslelena [56]3 years ago
4 0

Colfax:

Add the ratio numbers together:

5 + 4 = 9

Divide total students by that:

270 / 9 = 30

Multiply each ratio by 30:

Boys = 30 *5 = 150

Girls = 30 * 4 = 120


Do the same for Winthrop:

4 +5 = 9

180 /9 = 20

Boys = 20 * 4 = 80

Girls = 20 * 5 = 100


Total students = 270 + 180 = 450

Total Girls = 120 + 100 = 220


Fraction that are girls = 220 / 450 which reduces to 22/45

You might be interested in
Pls help if I don’t finish today mom will hurt me
kherson [118]

Answer:

We conclude that:

  • g(10) = 8

Step-by-step explanation:

First, we need to clear some concepts on how to fetch input and output from the function graph.

Determining the y-intercept:

We know that the y-intercept of the graph function can be determined by setting x = 0 and determining the corresponding y-value.

From the graph it is clear that x = 0, the value of y = 5. In other words, the graph intersects the y-axis at y = 5.

Therefore, the y-intercept of the graph is (0, 5).

Thus,

  • g(0) = 5

Determining the x-intercept:

We know that the x-intercept of the graph function can be determined by setting y = 0 and determining the corresponding x-value.

From the graph, it is clear that y = 0, the value of x = -10. In other words, the graph intersects the x-axis at x = -10.

Therefore, the x-intercept of the graph is (-10, 0).

Thus,

  • g(-10) = 0

Determining g(10):

From the graph, it is clearly visible that at x = 10, the value of the function output y = 8.

In other words,

  • at x = 10, g(10) = 8

Therefore, we conclude that:

  • g(10) = 8
5 0
2 years ago
The average number of customers per day increased 25 percent during the sale. If the average number of customers per day before
Rasek [7]

Answer:

The average number of customers per day during the sale was 150.

Step-by-step explanation:

This question can be solved using a rule of three.

Before the sale, the average number of customers per day was 120, which is 100% = 1.

Now, there are x customers, and since it is an increase of 25%, it is 100+25 = 125% = 1.25. So

120 - 1

x - 1.25

x = 1.25*120 = 150

The average number of customers per day during the sale was 150.

6 0
3 years ago
The result of subtracting 2 from its opposite is?<br> 0<br> 1<br> 4<br> -4
Katen [24]
The answer is 4 because 2--2 the two negatives make it a positive so its 2+2=4
7 0
3 years ago
Read 2 more answers
I need this to be an equation!! The difference between five times a number and four is 16!!
Katen [24]
5x-4=16. I hope this helps :)
8 0
3 years ago
Can you please help me on 2 and 3?
dexar [7]
Cant see it its cut off
4 0
3 years ago
Other questions:
  • 9 miles 10 miles 19 miles 22 miles ??
    15·1 answer
  • What is the interquartile range of the data set?
    6·1 answer
  • Help no guessing please explain how to solve
    6·2 answers
  • Convert 24 oz/qt to pounds per gallon
    15·2 answers
  • An institute surveyed small business owners across a state that employed 50 or fewer employees. The purpose of the study was to
    9·1 answer
  • children's $30 per day plus $5 for every sale that she makes at her job on Thursday she wants to earn at least $60
    6·1 answer
  • I need help with number 4 I'm not sure if this is right please help
    15·1 answer
  • Will give branist 12 times 12 times 12
    5·2 answers
  • Find the surface area of each figure.
    5·2 answers
  • State the discriminant and the nature of the solution it will
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!