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? I need to know what the ratio of girls to students is please!! Let's share our knowledge:) THANK YOU
1 answer:
Out of every 11 students 7 were girls. Set up the following proportion.
11/7 = 77/x Cross multiply
11x = 7*77
x = 7*77/11
x = 49
49 of the student council members were girls.
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Answer:
First number: 71/7
Second number: 135/7
Third number: 270/7
Step-by-step explanation:
First number = x
Second number= 2x-1
Third number= 2(2x-1)
x+(2x-1)+2(2x-1)= 68
3x-1+4x-2=68
7x-3=68
7x=71
x=71/7
You can check by plugging in the x into the equation.
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Y=4/5 or 0.8
Step-by-step explanation:
8y-4=3y
8y-3y=4
5y=4
41.8 rounded to the nearest tenth
