Answer:
About 21 weeks
Step-by-step explination:
Her bike is 775 dollars. Lets start there.
She will deposit 40 dollars every Friday, or, every week.
With this logic, we would only need 20 weeks. I found this by doing 775/40.
BUT
We have one more complication. Andrea owes 45 dollars to her sister. It is important to note that this is a ONE TIME payback. This is NOT weekly.
Here is how we will do it:
Andrea needs 775(bike)+45(sister)=820 dollars in debt
820/40 a week=20.5 weeks.
Since .5 of a week is 3.5, and I don't think .5 of a day applies here, we will round up and say that andrea will need roughly 21 weeks to earn all the money she needs.
Final answer: 21 weeks
I think it’s 90
Because it’s a right angle
Answer:
Why do you keep sending the same question over and over again?
Step-by-step explanation:
Total Time Taken = 16secs
10a). We're asked to calculate the rate of speed change for the first 5secs.
This is another way of saying "Calculate Acceleration" in the first 5sec of Motion.
Why?
Acceleration is the rate of change of speed or the rate at which speed changes.
acceleration = v - u/t
where v = Final Speed
u = initial Speed.
Looking at the graph
You see that
Initial speed(u) = 1m/s
Final Speed(v) = 9m/s
t = 5secs
Acceleration = 9 - 1/ 5
a = 8/5
a = 1.6m/s².✅
10b)
We're asked to calc "t" from the graph.
Given that the acceleration at "t" untill 16sec(end of motion) is 2m/s².
This simply means that Constant Acceleration was held from "t" to the end of the Motion.
Do not confuse Constant Acceleration for Constant Velocity.
At Constant Velocity... Acceleration is zero(0)
At Constant Acceleration...Velocity Changes Uniformly or at the same rate each second and this is what we're dealing with in this question.
Taking the same step as we used in calculating acceleration above
Given a= 2m/s²
a = v - u/∆t
Where ∆t means time change or difference.
From "t" to 16
The change in time is 16 - "t"
2 = 21 - 9/( 16 - t)
2 = 12/16-t
16-t = 12/2
16 - t = 6
t = 16 - 6
t = 10secs.✅
Have a great Day!.
Answer:
24 games.
Step-by-step explanation:
To do this, half of 6 is 3.
So, we would simply just split 48 in half by dividing it by 2.
48 / 2 = 24.
The hockey game will play 24 games in 3 weeks.