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84
To calculate the cost of 2m 10cm at 40p per meter, first convert 2m 10cm to centimeters. 2m is equal to 200cm, so in total, we have 210cm. Next, divide the total centimeters by 100 to convert to meters, which equals 2.1m. Finally, multiply 2.1m by 40p to find the total cost, which is 84p.
0.2
One tenth (1/10)
Well, isn't that a happy little question! To find the fraction of 2m that is 30cm, we first need to make sure our units are the same. Since 1m is equal to 100cm, 2m is 200cm. So, the fraction of 2m that is 30cm is 30/200, which simplifies to 3/20. Just remember, there are no mistakes, just happy little fractions waiting to be solved!