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
Jlenok [28]
2 years ago
8

There are 39 people on a city bus. The ratio of adults to children is 10 : 3. At the next stop, 3 adults get off the bus. What i

s the new ratio of adults to children on the bus?
A 3 : 1

B 9 : 2

C 7 : 3

D 12 : 1​

Mathematics
1 answer:
svp [43]2 years ago
5 0

Answer:

<u>3:1</u>

Step-by-step explanation:

Looking at the numbers

39 and a ratio of 10:3 kinda scream that there are 30 adults and  9 children to me, but when 3 adults get off, that is only 36 people.

this means,

27 adults,

and

9 children

so if it doesn't look obvious enough, 9 x 3 is 27, so that means that 3: 1 must be our ratio because the 3 in  3:1 multiplied by 9 is 27 which is the number of adults, and the 1 in children multiplied by 9 is 9!

so there you have it, 27/9 = 3

and

                                    9/9=1

so

<u>3: 1</u>

You might be interested in
Express 6/7 as a sum of two or three equal parts.
IgorLugansk [536]

Answer:

Step-by-step explanation:

2/7 2/7 2/7

2/7 3/7

3 0
3 years ago
Read 2 more answers
there is 1 person he has a friend how do you add him on brainly and how many people are there in total?
Radda [10]
You go on there profile and go to the followers and add whoever you want

Hope this helps

Have a great day/night
5 0
3 years ago
Write each expression in standard form .<br> <br> -3(1-8m-2n)<br> 5-7(-4q+5)<br> -(2h-9)-4h
oksano4ka [1.4K]
-3(-8m-2n+1^5)-6h+28q-26
7 0
3 years ago
What is the sum of measures of the exterior angles of a polygon that has fifteen sides
madreJ [45]

\bf \textit{sum of exterior angles}\\\\ n\theta =360~~ \begin{cases} n=\textit{number of sides}\\ \theta = \textit{angle in degrees}\\[-0.5em] \hrulefill\\ n=15 \end{cases}\implies 15\theta =360 \\\\\\ \theta =\cfrac{360}{15}\implies \theta =24

8 0
3 years ago
Suppose M varies directly with S. If M is 900 when S is 500, which equation relates M to S
julsineya [31]

Answer: M  = ⁹/₅S

Step-by-step explanation:

 M  ∞ S -------------------------------- 1

M  =  KS ------------------------------ 2

K is a constant and need to be calculated

substitute for M and S in 2 to find K

900 = K500

K      =  ⁹⁰⁰/₅₀₀

       = ⁹/₅

Therefore , the equation that connect / relates M to S will be

M   =  KS

M   = ⁹/₅S

6 0
3 years ago
Other questions:
  • You estimate that a piglet weighs 9 pounds. The actual weight of the piglet is 11 pounds. Find the percent error. Round your ans
    9·1 answer
  • Through (-1,-4) parallel to y=-x -3
    15·1 answer
  • Suppose a bag of rice weighs 3.8 kilograms. How much do 6 bags of rice weigh?
    14·2 answers
  • Which algebraic expression is a polynomial with a degree of 4? 5x4 + StartRoot 4 x EndRoot x5 – 6x4 + 14x3 + x2 9x4 – x3 – Start
    9·2 answers
  • What transformation would y=(x-2) 2 to the second+1 have
    13·1 answer
  • Lisa plays basketball and her shooting accuracy increased by 10% from 2001 to 2002, and by 30% from 2002 to 2003. By what percen
    9·1 answer
  • PLEASE HELP GUYS/GIRLS
    14·1 answer
  • I need help with this question.
    9·1 answer
  • How many photos in the shape of a parallelogram will it take to cover the bulletin board if each photo has a base of 6 inches an
    13·2 answers
  • Pls I need help I'm soooooooooooo confused on my question also please no links because I can't get to them!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!