Answer:
D. 15
Step-by-step explanation:
3x-10=2x+5
to solve subtract 2x from both sides
(3x - 2x) - 10 = 2x + 5 - 2x
add 10 to both sides
x -10 + 10 = 5 + 10
x = 15
Well since right now the average is 74.4, the tenth student would need to earn an 80 so the team got exactly an average of 75
5/8 of the students are boys
5 representing boys
8 representing all students
He has 7 books
5+2=7
Please give me a brainlest
Id say |x|=5, that's my guess