Answer:
answer 3
Step-by-step explanation:
This is a ratio.
12 km : 3 h
simplify to-
4km : 1 h
which means the hiker traveled 4 km per 1 hour.
Answer:
it's the 2nd one
Step-by-step explanation:
d = 3 + at^2
-3 | -3
d - 3 = at^2
d - 3/a = t^2
√d - 3/a = √t^2
t = √d - 3/a
Answer:
a = -2
Step-by-step explanation:
-3a + 8 = 14
14 - 8
= 6
-3a = 6
6/-3
= -2
a = -2
Please give me brainliest :)
Answer:
x = 3
Step-by-step explanation:
3(10-x)=21
30-3x=21
-30 -30
-3x=-9
x=3
