0.7hr(60min/hr)=42 min
The ration you multiplied by was 60min/hr, to cancel out the hr unit label...
Answer:
A- 3,000 = 50(60) + b
B- 2,100 = 50(42) + b
Step-by-step explanation:
i just did it
The toy rocket hits the ground when h(t) = 0.
So, h(t) = 0 = -9t^2 + 81.
Solving the equation,
-9t^2 = -81
Dividing by -9
t^2 = 9
Taking the square root.
t = 3
The answer is 3 seconds.
1+2=3.
30/3=10
10x1=10
10x2=20
So the answer would be £10:£20
And to check if it’s right £10 + £20= £30
Mmm... I think it is 5/8... I think.
