Answer:
62
Step-by-step explanation:
another way to write this is
x - 12 = 50
the answer is 62
62 - 12 = 50
C because it’s c trust me
the last one because 7*3=21 14*3=42 and 21*3=63
Answer:
C. 3.33 hours
Step-by-step explanation:
Use the algebra work equation:
=
+
, where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person
Plug in the values we know:
=
+ 
=
+ 
= 
20 = 6tb
3.33 = tb
So, it would take them 3.33 hours when working together.
Given:
and
.
To find:
The value of f(5).
Solution:
We have,

For
,




For
,




For
,




For
,




Therefore, the value of
is
.