Answer:
The speed of the boat is 20 km/hr
Step-by-step explanation:
Let s be the speed of boat in still water
Let d be the distance
Upstream speed = s-4
Jane took 30 min to drive her boat upstream to water-ski at her favorite spot.
So, Distance traveled in upstream =
Downstream speed = s+4
So, Distance traveled in downstream = 
So, 
30s-120=20s+80
10s=200
s=20
Hence The speed of the boat is 20 km/hr
Answer:
y = 4 x = -2
Step-by-step explanation:
Answer:
<h2>8 or -8</h2>
Step-by-step explanation:
The absolute value of number a:
|a| = a for a ≥ 0
|a| = -a for a < 0
|a| = 8 ⇔ a = 8 or a = -8
6,12,24,48,96... when we multiply by 2
-6,12,-24,48,-96.... when we multiply by -2
a) q can be 24 or -24
b)p/r=6/96 =-6/-96= 2/32=1/16
c) a(n)=6*2^(n-1)
386=6*2^(n-1), 386/6=2^(n-1), 64,333(3)=2^(n-1),
we will not be able to find whole number n for number 386, so 386 is not a term in this sequence, because it does not follow the rule of this sequence
