help me do this exercise
Attachments:

Answers
Answered by
0
Answer:
8)40
Step-by-step explanation:
(dear questionare I have not studied the chapter of square roots and cube roots because it is not an our syllabus and I am in class 7th so I can answer your 8th question)
let the numbers be 3x + 4x + 5x.
3x+4x+5x=480 (I added all the variable numbers)
12x=480
x=480/12 (I divided)
=40
Similar questions