5n + 4 = 39
5n = 39 -4
5n = 35
n = 35:5
n = 7
Answer:
960cm³
Step-by-step explanation:
Find the base of the triangle (use phytagoras theorem)
c²= a²+b²
20²= 16²+b²
400=256+b²
b²=400-256
b²= 144
b=

base= 12
Volume: (1/2×b×h)×l
= (1/2×12×16)×10
=(6×16)×10
=96×10
=960cm³
Answer:
it is 84
Step-by-step explanation:
the least common multiple of 7 and 12 is 84. i have no step by step explanation...sorry
Answer:
technically only 10 but if you round up then its 11.
Step-by-step explanation:
97 divided by 15 ~6.47
71 divided by 6.47~ 10.97
It’s used to establish the atomic theory, the law of conversation of mass