Suppose there are two biostatistics classes of 18 students and 12 students. the instructor gives them identical exams for the midterm. if the classes score an average of 82.3% and 89.8%, respectively, what is the average score for all students combined?

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

step-by-step :