Answer:
36
Step-by-step explanation:
Using pythag, 60^2 - 48^2 = 3600 - 2304, which is 1296, whose square root if 36. This is also a 3-4-5 triangle.
60 power 2 minus 48 power 2 under square root = 36
y= 12
2/3 y + 7 = 15
Subtract 7 from each side
2/3 y + 7-7 = 15-7
2/3 y = 8
Multiply each side by 3/2 to isolate y
3/2 * 2/3 y = 3/2 * 8
3/2 * 2/3 y = 3 * 4
y = 12
true
chiều dài:x,x>0
chiều rộ:y