The price of a house was originally listed at $165,000. The owners are having a hard time selling it and decide to reduce the pr
ice to $117,150. What is the percentage decrease of the price of the house?
1 answer:
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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
