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
Anon25 [30]
3 years ago
5

In a school, the ratio of the number of boys to the number of girls in a school is 7 : 5 - if there are 600 students in the scho

ol, how many girls are there?
How many students does each unit represent?
Mathematics
1 answer:
PIT_PIT [208]3 years ago
6 0

Answer:

350 girls.

5 unit represents 250 girls and the 7 unit represents 350 boys

Step-by-step explanation:

Add 5+7 =12

600÷12=50

RATIO OF BOYS TO GIRLS IS 7:5   SO

50x5=250 GIRLS.

7*50=350

so 5 unit represents 250 girls and the 7 unit represents 350 boys.

You might be interested in
Three less than a 6 times a number is 39. find the number
Vanyuwa [196]
Using the problem, create an equation to find the number (x).
Three less than (so x minus 3) 6 times a number (6 times x) equals 39.

6x-3=39, solve for x.
x = 7
5 0
3 years ago
What is nine and three hundredths as a fraction and decimal?
Ratling [72]
Decimal=9.03 &
fraction= 9 3/100
8 0
3 years ago
Read 2 more answers
In a group of Explore students, 38 enjoy video games, 12 enjoy going to the movies and 24 enjoy solving mathematical problems. O
Elodia [21]

Answer:

The number of students that like only two of the activities are 34

Step-by-step explanation:

Number of students that enjoy video games, A = 38

Number of students that enjoy going to the movies, B = 12

Number of students that enjoy solving mathematical problems, C = 24

A∩B∩C = 8

Here we have;

n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) -n(A∩C) + n(A∩B∩C)

= 38 + 12 + 24 - n(A∩B) - n(B∩C) -n(A∩C) + 8

Also the number of student that like only one activity is found from the following equation;

n(A) - n(A∩B) - n(A∩C) + n(A∩B∩C) + n(B) - n(A∩B) - n(B∩C) + n(A∩B∩C) + n(C) - n(C∩B) - n(A∩C) + n(A∩B∩C) = 30

n(A) + n(B) + n(C) - 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) + 3·n(A∩B∩C) = 30

38 + 12 + 24 - 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) + 24 = 30

- 2·n(A∩B) - 2·n(A∩C) - 2·n(B∩C) = -68

n(A∩B) + n(B∩C) + n(A∩C) = 34

Therefore, the number of students that like only two of the activities = 34.

8 0
3 years ago
Must equal 24 with the numbers 14 18 2 4<br><br> Must equal 24 with the numbers 14 18 2 4
Vlada [557]

Answer:

(18-14)*(2+4)=24

Step-by-step explanation:

4*6=24

7 0
3 years ago
Find all solutions of the given system of equations and check your answer graphically. HINT [See Examples 2–5.] (If there is no
Reika [66]

The values of (x,y)=(4,4). In terms of x, the value y(x)=8-x, If the given equation is x-y=0 and x+y=8.

Step-by-step explanation:

The given is,

                              x-y=0...............................(1)

                              x+y=8...............................(2)

Step:1

          Solution can be obtained by Elimination method,

          Equation (1) is multiplied by (-1)           ( Eqn (1) × -1 )

                             -x+y=0..............................(3)

          Substrate the equation (1) and equation (3),

                              -x+y=0

                                x+y=8

         ( - )

         (-x-x)+(y-y)=(0-8)

                             (-2x)=-8

                                -2x = -8

         we can cancel the minus because it is available in both sides,

                                  2x=8

                                    x = \frac{8}{2}

                                     x = 4

        From the value of x, Equation (2) becomes,

                              x+y=8

                               4+y=8

                                     y = 8-x    (Value of y in terms of x)

        Where, x = 4

                                     y = 8-4        

                                     y =4

Step:2

       Check for solution,

                             x+y=8.....................................(2)

       Substitute the values of x and y,

                             4 + 4 = 8

                                   8 = 8

Result:

         The values of (x,y)=(4,4). In terms of x, the value y(x)=8-x, where x=4. If the given equation is x-y=0 and x+y=8.

         

5 0
3 years ago
Other questions:
  • In the formula, V = LWH, if L = 28, and W and H are equal, and V = 252, what is W?
    15·1 answer
  • SERIOUSLY NEED HELP WITH THIS QUESTION.
    7·2 answers
  • Which relationships hold true for the sum of the magnitudes of vectors u and v, which are perpendicular
    15·1 answer
  • what are some important things you learned about mistakes,struggle and speed that everyone your age should know ?
    6·1 answer
  • Can anyone solve for x? Please.
    12·1 answer
  • Helpppppp<br> Show workings
    5·1 answer
  • How many unique tree graphs (i.e. with different degree patterns) can be made with
    7·1 answer
  • Evaluate 5a+ 4b2 when a = 7 and b = 6​
    8·1 answer
  • Jimmy bought a pair of jeans on sale for 30% off the regular price of $38.00. What was the discount he received at the cash regi
    12·1 answer
  • Please help me I am stuck
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!