web
2.0
calc
Register
Login
Information
This feature requires your approval of cookies
You can approve cookies in the notification bar at the top of this window
Username
Password
Login
forgot your password?
Yes, I accept cookies
This website uses cookies to improve user experience. By accepting with the checkbox "Yes, I accept cookies" you consent to all cookies in accordance with our
Cookie Policy
Home
Forum
^{+0}
Widgets
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Gotcha
Username
Gotcha
Score
13
Stats
Questions
3
Answers
0
3 Questions
0 Answers
0
236
2
+13
During a race Ali ran the first 300 metres in 2 mins 10 secs and the last 100 metres in 30 secs. What was his average speed in m/s?
During a race Ali ran the first 300 metres in 2 mins 10 secs and the last 100 metres in 30 secs. What was his average speed in m/s?
I need a little help with this. I think I know the answer but I'm not sure if its correct. Please help me out.
read more ..
Melody
●
●
Gotcha
Jul 5, 2015
0
710
54
+13
I've got one last question for yah. I thought I knew the answer, but I didn't. Ok:
I've got one last question for yah. I thought I knew the answer, but I didn't. Ok:
y is directly proportional to x. When y = 20, x = 4
Calculate x when y = 80
rosala
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Gotcha
Jun 29, 2015
0
292
1
+13
The distance(D km) that sally cycles varies directly as her speed (S km/h). So D=kS. She cycles 16km at an average speed of 8km/h.
The distance(D km) that sally cycles varies directly as her speed (S km/h). So D=kS. She cycles 16km at an average speed of 8km/h.
a) Find a formula connecting D and S.
Ans= D= 2S (I think this is correct)
b) How far would she cycle
read more ..
Alan
●
Gotcha
Jun 29, 2015