Answer:
The answer to your question is speed = 9 m/s
Step-by-step explanation:
Data
Winner Last runner
time = 45 s time = 48 s
speed = 9.6 m/s
Process
1) Calculate the distance they ran using the data of the winner
speed = distance / time
-Solve for distance
distance = speed x time
-Substitution
distance = (9.6)(45)
-Result
distance = 432 m
2.- Calculate the speed of the last runner
-Substitution
speed = 432/48
-Result
speed = 9 m/s
Answer:
increase 20 times
Step-by-step explanation:
when you have a double increase and decrease then you multiply
But if they are different then you divide
5 - increase
4 - increase
<u><em>20- increase</em></u>
Answer:
21
Step-by-step explanation:
We have to create an identity
3x + 21 = 3x + k
if we substitute k with 21 we have
3x + 21 = 3x + 21
that is an identity so it’s true for every value of x
I think the answer would be A,B and E
Answer:
y = x+1
Step-by-step explanation:
points (0,1) and (2,3)
slope =(y2-y1)/(x2-x1)
m = (3-1)/(2-0)
= (2/2)
m=1
the y intercept ( or where it crosses the y axis) is 1
y = mx+b
y = 1x+1
y = x+1
