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
aleksklad [387]
2 years ago
11

Out of the 25 students in Mrs. Coulter's class, 15 are girls. In the school there are 390 boys. If the ratio of boys to students

in Mrs. Coulter's class is proportional to the ratio of the number of boys in the school to the total number of students in the school, how many students are at the school?
Mathematics
2 answers:
GREYUIT [131]2 years ago
6 0

Answer:

975 students

Step-by-step explanation:

This is a dense question. Let's look at it piece by piece:

1. The ratio of boys to students in the class is 10/25. If there are 25 students and 15 girls, that leaves 10 boys.

2. The question says that the ratio is in proportion of boys to total students in the school. "In proportion" in this case means that if we convert 10/25 to a fraction with numerator 390, the denominator is the amount of students in school.

3. 10x39=390. What you do the numerator you must do to the denominator: 25x39=975.

4. This means 975 students go to the school.

kotegsom [21]2 years ago
6 0
That is correct I would say!
Ty for the explanation
You might be interested in
What is the answer to F(-2) =
Fofino [41]

Just substitute - 2 into x and solve.

7 0
3 years ago
B. Now, assume that all of these circles have a radius of two. Then, calculate the ratio of a proximate circumference to the dia
Alenkasestr [34]

Answer:

I think b is the answer hopefilly

5 0
2 years ago
Read 2 more answers
Please need help asap attachment
docker41 [41]

Answer:

3 + 6 = 9/12

simplyfy this:

3/4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which expression is equivalent to StartRoot StartFraction 25 x Superscript 9 Baseline y Superscript 3 Baseline Over 64 x Supersc
MAVERICK [17]

Answer:

\displaystyle \frac{5x}{8y^{4}}\sqrt{x}

Step-by-step explanation:

<u>Simplfy in Algebra </u>

We have the following expression

\displaystyle E=\sqrt{\frac{25x^9y^3}{64x^6y^{11}}}

Simplifying like factors in the denominator and numerator

\displaystyle E=\sqrt{\frac{25x^3}{64y^{8}}}

All the factors are perfect squares except x^3, thus we rewrite:

\displaystyle E=\sqrt{\frac{25xx^2}{64y^{8}}}

Taking the square root of all the perfect square factors:

\boxed{\displaystyle E=\frac{5x}{8y^{4}}\sqrt{x}}

5 0
3 years ago
Read 2 more answers
What's an example of a situation in which it is better to find the difference in order to compare two quantities.
Flauer [41]
When you find the difference to compare two different quantities, it shows what is missing from one that is in the other. for example if you compare 4 and 8 by subtracting 4 from 8, then you know that 8 is 4 more than 4.
3 0
3 years ago
Other questions:
  • Debbie's city took a survey about a plan for a new park. The city surveyed 600 people. 60% of the people surveyed liked the plan
    10·2 answers
  • Simplify a - b - [C- (d - e) - f] - g).
    13·1 answer
  • May somebody help me please and thank you
    12·1 answer
  • The vertex of the parabola below is at the point (1.-3). Which of the equations below could be the one for this parabola?
    10·2 answers
  • Nina draws the model at the right to represent the relationship 8 times as many as 4 is 32. Nina thinks she can label the model
    13·1 answer
  • Help meeeeeeeeeeee<br> pls
    13·2 answers
  • Consider the graph of f(x) = 5x^6-5x^5-x^4
    6·2 answers
  • Norma keeps immaculate records on her car. Each time she fills up her car with gas she records the odometer reading and the numb
    5·1 answer
  • HELPPP PLEASEEEEEEEEE
    12·1 answer
  • What is the slope of the line passing through the points (-3, 4) and (2, - 1)?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!