A few days ago
can some 1 help me with my maths please? (GCSE)?
Please show working out
Susie has a new bike
the radius of its wheels is 30cm
susie rides her bike to school which is 1km from her home
how many times will one of the wheels turn on the way to school
Top 2 Answers
A few days ago
Favorite Answer
First you have to find the circumference of the wheel.
If the radius is 30 cm, then the circumference is
2 x pi x 30 = 60 x pi = 188.50 cm
There are 100 centimeters in a meter, so the circumference is 1.885 meters.
There are 1000 meters in a kilometer, so if you divide the 1000 by 1.885 and get 530.50 turns of the wheel.
1
A few days ago
1.0 centimeters = 0.0001 kilometers
0
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