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
kenny6666 [7]
3 years ago
8

In a group of students the ratio of the number of students who liked music and sport is 9:7. out of which 25 liked both the acti

vities, 20 liked music only and 15 liked none of the activities .
i)find the total number of students in group
Mathematics
1 answer:
arlik [135]3 years ago
8 0

Answer:

Hello,

Total number : 70

Step-by-step explanation:

20 + 25 = 45

45 liked music

X liked sport only

X + 25 liked sport

45 / 9 = (X + 25) / 7  ⇔ 7 x 5 = X + 25 ⇔ X = 35 - 25 ⇔ X = 10

10 liked sport only

Total students in group : 45 + 10 + 15 = 70

You might be interested in
The measure of an angle is 15.8°. What is the measure of its complementary angle?
Dmitrij [34]

Answer:

x = 74.2°

Step-by-step explanation:

Complementary angles are two angles whose sum is 90°.

Let x = the second angle

15.8° + x  = 90°

      x = 90 - 15.8°

     x = 74.2°

7 0
2 years ago
What are the measures of ∠1 and ∠2? (HELP ASAP USE IMAGE!!)
koban [17]
Answer letter b I think
7 0
3 years ago
Read 2 more answers
PLEASE HURRY!! The graph shows the distance traveled by two cars over several minutes.
tamaranim1 [39]
Im late but i had this test its car A < rate of car B hope it helps
6 0
2 years ago
Read 2 more answers
If the measure of angle ABF=6x+26 and the measure of angle EBF=2x9 and measure of angle ABE= 11x-31 find the measure of angle AB
Hunter-Best [27]

Its not clearly given that whether EBF = 2x + 9 or 2x - 9.

I have written the solution for both.

If EBF = 2x + 9,

then ABF = 6x + 26 and ABE = 11x - 31.

Now, ABE = ABF + EBF

11x - 31 = (6x + 26) + (2x + 9)

           = (6x + 2x) + (26 + 9)

           = 8x + 35

11x - 8x = 35 + 31

3x = 66

x = 22

Therefore, ABF = 6x + 26 = 6(22) + 26 = 132 + 26 = 158°

If EBF = 2x - 9,

then ABF = 6x + 26 and ABE = 11x - 31.

Now, ABE = ABF + EBF

11x - 31 = (6x + 26) + (2x - 9)

           = (6x + 2x) + (26 - 9)

           = 8x + 17

11x - 8x = 17 + 31

3x = 48

x = 16

Therefore, ABF = 6x + 26 = 6(16) + 26 = 96 + 26 = 122°

4 0
3 years ago
I dont get this question.
SashulF [63]
It is 12 - 2/3 = 18, then solve :)
hope that helps :D
8 0
3 years ago
Other questions:
  • Y=2x-1<br><br> y=-3x+14<br><br> Solve for y
    14·1 answer
  • Which of the following describes the roots of the polynomial function f(x) = (x-3)^4(x+6)^2
    10·2 answers
  • Write the point-slope form of the equation of the line through the given point with the given slope.
    14·2 answers
  • Anybody wanna help me with this one and 3 more I’ll cash app?
    5·1 answer
  • Find x, if f(x) = 12 and f(x) = 3x.<br><br> 3<br> 4<br> 36<br> 12
    8·2 answers
  • What is the slope of the line?
    8·2 answers
  • Answer?? please i need this
    13·1 answer
  • IF YOU HELP ME I WILL GIVE YOU 5 STARS AND A BRAINLIEST
    15·2 answers
  • laura deposits $2000 into an account that pays simple interest at a rate of 2% per year. How much interest will she be paid in t
    12·1 answer
  • Help me please!! This is timed and I’m stuck
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!