Craig likes to collect vinyl records. Last year he had 10 records in his collection. Now he has 12 rerecords. What is the percen
2 answers:
Answer:
His collection increased in a 20%.
Step-by-step explanation:
<h3>We can solve this with the rule of three.</h3>If 100% represents 10 records, what percentage would be for 12 records?
So, if we subtract , it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.
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Answer:
240 feet per hour
Step-by-step explanation:
Given that:
Submarine is descending for examining the sea floor.
Distance of sea floor from the surface = 2100 feet
Time taken for the descend = 8.75 hours
To find:
The rate of descent in feet per hour = ?
Solution:
Here, we are given the distance traveled in feet and the time taken to travel that distance in hours.
And we have to find nothing but the speed of the submarine.
First of all, let us have a look at the relationship among speed, distance and time.
Putting the values of distance and time.