What units in the metric system would you use to measure each of the following
quantities?=
The United States emitted 19.5 million t of nitrogen oxides
(NO) into the atmosphere in 1987. One metric ton (1 t) equals 1,000 kg. How many
kilograms of NO were emitted to the atmosphere in the United States during 1987?=19,500,000,000
Complete each statement. (Round to the nearest hundredth.)72 in. =182.88 cm
7 L = 7.35 qt
Samantha’s speedometer reads in kilometers per hour. If
the legal speed limit is 55 mi/h, how fast can she drive?88.5 km per hr
88.5 km/hr is correct.
I get 7.396 qts which would round to 7.40.
182.88 cm is correct.
I don't understand the question for the first one.
To measure the quantity of nitrogen oxides emitted by the United States in 1987, we can use the metric unit "kilograms" (kg). Given that 1 metric ton (t) is equal to 1,000 kg, we need to convert the given value of 19.5 million t to kilograms by multiplying it by 1,000:
19.5 million t * 1,000 kg/t = 19,500,000,000 kg
Therefore, 19,500,000,000 kilograms of nitrogen oxides were emitted into the atmosphere in the United States in 1987.
To convert 72 inches to centimeters, we need to use the metric unit "centimeters" (cm). The conversion factor between inches and centimeters is that 1 inch equals 2.54 centimeters. To get the value in centimeters, we multiply 72 inches by 2.54:
72 inches * 2.54 cm/inch = 182.88 cm
Therefore, 72 inches is equal to 182.88 centimeters when rounded to the nearest hundredth.
To convert 7 liters to quarts, we need to use the metric unit "quarts" (qt). The conversion factor between liters and quarts is that 1 liter is approximately equal to 1.05668821 quarts (rounded to the nearest hundredth). To find the number of quarts, we multiply 7 liters by the conversion factor:
7 liters * 1.05668821 qt/liter = 7.39 qt (rounded to the nearest hundredth)
Therefore, 7 liters is approximately equal to 7.39 quarts when rounded to the nearest hundredth.
To convert the legal speed limit from miles per hour (mi/h) to kilometers per hour (km/h), we need to use the metric unit "kilometers per hour" (km/h). The conversion factor between miles per hour and kilometers per hour is that 1 mile is approximately equal to 1.60934 kilometers (rounded to the nearest hundredth). To find the speed in kilometers per hour, we multiply 55 mi/h by the conversion factor:
55 mi/h * 1.60934 km/mi = 88.5 km/h (rounded to the nearest hundredth)
Therefore, Samantha can drive at a speed of approximately 88.5 kilometers per hour when rounded to the nearest hundredth.