We will be using the formulas:
speed=distance/time
time=distance/speed
distance=speed×time
First let's find out Diane's rate of swimming. We can measure this by finding the slope (y/x) of a given coordinate on the graph. One point is (10,15), so you do 15/10=1.5m/s
Now for Rick's rate of swimming, just take a pair of values from the table. 12.5/10=1.25m/s
By the way m/s is metres per second for this
So at a constant speed of 1.5m/s, Diane swam 150m in 150/1.5= 100 seconds, or 1 minute 40 seconds
And at a constant speed of 1.25m/s, Rick swam 150m in 150/1.25= 120 seconds, or 2 minutes.
So the difference between their two times is 20 seconds
Answer:
compound
Step-by-step explanation:
it uses a comma and the conjunction but. so it is seen to be a compound sentence
Answer: 17
Step-by-step explanation:
20. percent *85 =
(20.:100)*85 =
(20.*85):100 =
1700:100 = 17
Answer:
B
Step-by-step explanation:
the cost of goods sold in 2017 is
19,000−(19,000×0.082)=17,442
