A school choir requires that 60% of the students be sixth graders. If there are 30 sixth-grade students in the choir, what is the total number of students in the choir?

50

Step-by-step explanation:

30 divided by 60% is 50 also 60% can also be 0.6.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80