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
The graph shows the cost of purchasing T-shirts. Find the constant rate of change for the graph. Then explain what points (0,0)
Maru [420]

Answer:

See below

Step-by-step explanation:

As per the attached graph we observe that the constant rate of change is 9 as each step of horizontal change corresponds to 9 steps of vertical change

<u>It is found as the division below:</u>

  • (9-0)/(1-0) = 9/1 = 9

Point (0, 0) indicates the start point

Point (1, 9) indicates the cost of 1 t-shirt

4 0
3 years ago
Read 2 more answers
34,94,14,35,29,16,73,51,41<br>Mean:<br>Mode: <br>Median:<br>Range:​
Zinaida [17]
Mean:43
Mode:n/a
Median:35
Range:80
6 0
4 years ago
Read 2 more answers
Please help me ..!!!
Simora [160]
The range of the piecewise function would be from [2,infinity), or the second choice.
6 0
3 years ago
2a-2/3b-4 1/2a -1/6b
Verizon [17]
If your looking for the expression its
  
  -  _5(3a+b)_
            6
the negative goes before all of it not before the 5.
hopefully this helped some??
8 0
3 years ago
Brianna bought snacks for her team's practice. She bought a bag of oranges for $2.72 and a 20-pack of juice bottles. The total c
posledela

Answer:

each bottle was $2.12 :P

Step-by-step explanation:

➼start by making an equation to find the price of the juice pack, in this case x would be the price of the juice pack because its unknown, the juice pack price(x) added to the price of the oranges(2.72) and equal the total(45.12), the before tax part is not needed info

2.72 + x = 45.12

➼now our aim to get x alone to find out its worth so we will have to do the opposite and subtract 2.72 from everything, since its positive

2.72-2.72=0 crosses out

45.12-2.72=42.4

➼which gets us x = 42.4 so one 20 pack is 42.40 dollars but we arent done yet, to find out the price of EACH bottle we must divide 42.4 by 20!

42.4/20=2.12

➼so to sum it up, each bottle is $2.12 :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • Write an expression that shows 9 less than the product of 11 and 3.5
    6·2 answers
  • A conical container can hold 120π cubic centimeters of water. The diameter of the base of the container is 12 centimeters. The h
    11·1 answer
  • How to find the area r = 6 ft
    7·1 answer
  • PLEASE HELP .....................................................................
    5·2 answers
  • Graph a line with a slope of -5 that contains the
    14·1 answer
  • 3. The point D(3, -2) is
    14·1 answer
  • A. the graph increases
    7·2 answers
  • A medical company tested a new drug for possible side effects. The table
    8·1 answer
  • Which equation represents a line with a slope of -5/4?
    10·1 answer
  • Using the formula for initial velocity h=-16t2+VT the height of any object can be found by the time, Annalee serves a volleyball
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!