Can someone tell me what this formula means and why it is set out like this?
If you have a mobile phone and you pay £15 for 30 mins and anything over is charged at 10p per min this is how the formula is set out.
Total monthly cost in £=15 + (total number if minutes used -30)x0.1
I'm trying to learn how to write formulas for maths but im finding it really hard and don't fully understand it.
Im new to this site and im doing a home course in maths, i have done ok so far untill i come to this question and i dont understand it.
The wheels on a bike have a circumference of 2 meters. Each time the front wheel makes one complete revolution, the bicycle moves forward 2 meters. in your mown words describe how to work out the distance travelled by the bicycle if you know how many revolutions the bicycle has made.
Hence write down a word formula for the distance travelled.
The formula should start:
distance travelled in m =........