a passenger car weighs 4.5×10³ units. which unit of measure was used?\ngrams\nounces\npounds\ntons
a passenger car weighs 4.5×10³ units. which unit of measure was used?\ngrams\nounces\npounds\ntons
Answer
Explanation:
Step1: Consider weight of a car
A car is a relatively heavy object.
Step2: Analyze each option
- Grams: $4.5\times 10^{3}$ grams = 4500 grams = 4.5 kilograms. A car is much heavier than 4.5 kg, so grams is not correct.
- Ounces: 1 ounce is approximately 28.35 grams. $4.5\times 10^{3}$ ounces is $4.5\times10^{3}\times28.35 = 127575$ grams = 127.575 kg. A car is heavier than this, so ounces is not correct.
- Pounds: 1 pound is approximately 0.4536 kg. $4.5\times 10^{3}$ pounds is $4.5\times10^{3}\times0.4536=2041.2$ kg. This is a reasonable weight for a passenger - car.
- Tons: 1 ton is 1000 kg. $4.5\times 10^{3}$ tons is 4500000 kg. A passenger - car is not this heavy.
Answer:
pounds