Giant kelp is one of the fastest-growing organisms on the planet. Desmond told his little brother that kelp grows about 1.38×10−2 feet per minute. What would be the most appropriate unit for Desmond to use instead of feet per minute?Choices:(A) inches per minute(B) feet per second(C) feet per hour(D) feet per day
Q. Giant kelp is one of the fastest-growing organisms on the planet. Desmond told his little brother that kelp grows about 1.38×10−2 feet per minute. What would be the most appropriate unit for Desmond to use instead of feet per minute?Choices:(A) inches per minute(B) feet per second(C) feet per hour(D) feet per day
Convert to inches: Kelp grows 1.38×10−2 feet per minute. Convert feet to inches because there are 12 inches in a foot.
Multiply by 12:1.38×10−2 feet per minute ×12 inches/foot = 1.38×10−2×12 inches per minute.
Simplify notation: Now, write it in scientific notation: 16.56×10−2 inches per minute.
Choose appropriate unit: Simplify the scientific notation: 16.56×10−2=0.1656 inches per minute.
Choose appropriate unit: Simplify the scientific notation: 16.56×10−2=0.1656 inches per minute.Choose the most appropriate unit from the choices given. Inches per minute makes the most sense because the number is small and manageable.
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