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:
Together the football and baseball cards make up 77/100 of Heath's card collection.
Step-by-step explanation:
First, you compute the fractions (sorry, I can't think of the right word) so that they have the same denominator. 7/100 = 7/100, and 7/10 = 70/100. Now you're able to add them. 7/100 + 70/100 = 77/100. This fraction is already in simplest form, so there's no need to simplify. Therefore, together the football and baseball cards make up 77/100 of Heath's card collection.
1, -2
1, -6
4, -6
-2, -6
-2, -1
The cab is 4 blocks away from its starting point.
(I think)
Answer:
yes!
Step-by-step explanation:
Answer:
mama mo blue
Step-by-step explanation:
