D=4(9-c) and d=2(9+c)
d=36-4c and d=18+2c
Since d=d
18+2c=36-4c add 4c to both sides
18+6c=36 subtract 18 from both sides
6c=18 divide both sides by 6
c=3
So the speed of the current is 3mph
Step-by-step explanation:
a is the right answers to the same as the right
The answer is C. Hope this helps!
Step-by-step explanation:
option C is the answer.
hope it helps
Answer:
-8
Step-by-step explanation:
-8x - 47 = 17
+47 +47
-8x = 64
Divide both sides by -8
x = -8