Write the possible range of the measurement: 220 km ± 5%
To find the possible range of the measurement with the given information, we can use the formula for calculating the percentage range:
Possible Range = Measurement ± (Measurement * Percentage/100)
In this case, we have a measurement of 220 km and a percentage of ± 5%. We can substitute the values into the formula:
Possible Range = 220 km ± (220 km * 5%/100)
Now, let's calculate the range:
Possible Range = 220 km ± (220 km * 0.05)
To find the upper and lower limits of the range, we can add and subtract the result from the original measurement:
Possible Range = (220 km - (220 km * 0.05)) to (220 km + (220 km * 0.05))
Simplifying further:
Possible Range = (220 km - 11 km) to (220 km + 11 km)
Thus, the possible range of the measurement is from 209 km to 231 km.
well, 5% of 220 = 11 km
so ...