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
Vaselesa [24]
3 years ago
11

The ratio of boys to students is 3 to 7. If there are 20 girls in the school, then how many boys are in the school?

Mathematics
1 answer:
qwelly [4]3 years ago
5 0

Answer:

No. of boys = 15

Step-by-step explanation:

Given that,

The ratio of boys to student is 3:7.

Number of girls in the school = 20

We need to find the number of boys in the school.

Let there are 3x boys and 7x number of students.

No. of girls = Total students - no. of boys

= 7x-3x

= 4x

ATQ,

4x = 20

x = 5

No. of boys = 3x

= 3(5)

= 15

Hence, there are 15 boys in the school.

You might be interested in
K(t)=10t−19 k=-7 k=-7=<br> Please help
igomit [66]

Answer:

t = 6/5

Step-by-step explanation:

Step 1: Define

k(t) = 10t - 19

k(t) = -7

Step 2: Substitute and Evaluate

-7 = 10t - 19

12 = 10t

t = 6/5

6 0
4 years ago
A line has a slope of 3/5. a line parallel to that line would have a slope of
nekit [7.7K]
-3/5 they have opposite slopes so they would never touch but are parallel.
4 0
3 years ago
I need help on this.
valentinak56 [21]

Answer: True

The opposite sides of a parallelogram are congruent or equal in length. The opposite sides are also parallel. It might help to think of a rectangle, which is a special case of a parallelogram.

3 0
3 years ago
Read 2 more answers
Given the following rectangle and circle, at what approximate value of x are the two areas equal? Show work and explain all step
suter [353]

Answer:

x ≈ 1.28

Step-by-step explanation:

I just took the exam:

Area of rectangle =(3x-1)(x+6), Area of circle = PI(x+1)^2. If you graph these and find where they intersect, you will get x ≈ 1.28.

I hope this helped! :)

7 0
3 years ago
To miss a particular shade of pink paint white paint and red paint are mixed in the ratio 4:3 if 12 gallons of red paint are mix
mart [117]
12:9. 12 red and 9 white to create the shade of pink. I hope this helps:)
8 0
2 years ago
Other questions:
  • If the perimeter of a figure is doubled, then the dimensions were....?
    12·1 answer
  • PLEASE HELP ME I CAN'T GET THIS WRONG, I KNOW ITS NOT #4
    7·1 answer
  • Erik tried to evaluate 2 x 7,000 step by step.
    15·2 answers
  • (y − 3)^2 = 4(x − 5), (6, 1). Find an equation of the tangent line to the graph at the given point.
    5·1 answer
  • A survey of 1,562 randomly selected adults showed that 522 of them have heard of a new electronic reader. The accompanying techn
    5·1 answer
  • A rectangular based prism has a length of
    13·1 answer
  • which has a greater effect on the volume - changing the radius by a given amount or changing the height by the same amount/ why?
    13·2 answers
  • A man has a mass of 120kg, he reduces his mass by 15%, how many kilograms is that​
    6·2 answers
  • What is the derivative of 2√x ?
    15·1 answer
  • George paid a total of $985 to rent a storage unit.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!