Q. Mia paints interior walls at a rate of 12hm2.At what rate does Mia paint in mincm2 ?□mincm2
Convert units: To convert the rate from square meters per hour to square centimeters per minute, we need to know the conversion factors between meters and centimeters, and between hours and minutes. There are 100 centimeters in a meter, and there are 60 minutes in an hour.
Convert square meters to square centimeters: First, we convert square meters to square centimeters. Since there are 100 centimeters in a meter, there are 1002=10,000 square centimeters in a square meter.
Multiply by conversion factor: Now, we multiply Mia's rate by the conversion factor from square meters to square centimeters. This gives us 12m2/h×10,000cm2/m2=120,000cm2/h.
Convert hours to minutes: Next, we convert hours to minutes. Since there are 60 minutes in an hour, we divide Mia's rate by 60 to find the rate per minute.
Divide by 60: Dividing the rate in square centimeters per hour by 60 gives us 120,000cm2/h÷60min/h=2,000cm2/min.
Calculate final rate: Therefore, Mia paints at a rate of 2,000 square centimeters per minute.
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