There are 77 students in the student council. the ratio of girls to boys is 7: 4 how many girls are in the student council? what is the ratio of girls to students

There are 49 girls on the student council

Girls: total

     7:11

Step-by-step explanation:

girls : boys: total

7        :      4 :  7+4

7       :      4  :    11

We have 77 students total

77/11 = 7

So multiply each  by 7

girls : boys: total

7*7    :  4*7:  11*7

49     :  28 :   77

There are 49 girls on the student council.

Girls : students

49:77

Divide by 7

49/7 : 77/7

7 : 11

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

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