The ratio of boysto girls in the sixth grade is 3 to 5. if there are 45 girls how many students are there in th sixth grade

72 Students

Step-by-step explanation:

boys = 3

girls = 5

total ratio = 5+3

= 8

let the total number of students be x

girls = 5/8 * x = 45

5x/8 = 45

crossmultiplying

5x = 45 * 8

5x = 360

x = 360/5

x = 72

The total number of students = x = 72 students

step-by-step explanation:

if x = 2 you have to find x to finish the problem

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225