You can write every speed as the ratio between the space and time, so in this case you have

Answer:
78
Step-by-step explanation:
Ed2020
Answer:
1/19
Step-by-step explanation:
To find the x coordinate of the midpoint, add the x coordinates and divide by 2
(-5+3)/2 = -2/2 = -1
To find the y coordinate of the midpoint, add the y coordinates and divide by 2
(3+-1)/2 = 2/2 = 1
(-1,1)
when the two books were published