A strong gale corresponds to a wind speed range of 41 to 47 knots. To convert knots to miles per hour (mph), you use the fact that one knot is approximately equal to 1.15 miles per hour.
Therefore, for the lower limit of a strong gale (41 knots), you convert it to miles per hour as follows:
[tex]\[ 41 \text{ knots} \times 1.15 \text{ miles/hour per knot} = 47.15 \text{ miles/hour} \][/tex]
This means that the best estimate for the wind speed during a strong gale near Beth's house, in miles per hour, is 47.15 mph.
Hence, the completed statement should be:
On Sunday, a strong gale blows near Beth's house. The best estimate for the wind speed is 47.15 miles/hour.
Putting it all together:
"On Sunday, a strong gale blows near Beth's house. The best estimate for the wind speed is 47.15 miles/hour. Note: One knot is about the same as 1.15 miles/hour."
