Choose an appropriate metric unit for the mass of concrete in a section of sidewalk.
a kilogram
b milligram
c gram
d meter
Which is likely to have a mass close to 2 kilograms?
a a grown elephant
b a pineapple
c a 3 year old child
d a acorn
Which measure correctly completes the statement? 3,500 mg = ? g
a 0.035
b 3,500
c 0.35
d 3.5
Which measure correctly completes the statement? 321 L = ? mL
a 0.0321
b 3,210,000
c 321,000
d 32,100
A flower was 20 centimeters tall one week ago. In 5 days, it grew 1 meter. Find the current height of the flower.
a 12.3 centimeters
b 120 centimeters
c 125 centimeters
d 11.2 centimeres
Find the area of the rectangle with a length of 20 inches and a width of 42 inches.
a 62 in.
b 840 in.
c 16,800 in.
d 6,200 in.
b milligram (since concrete is a very dense material and the mass of a section of sidewalk would likely be in the thousands or millions of grams, using milligrams would make more sense to avoid large numbers)
a a grown elephant
c 0.35
c 321,000
b 120 centimeters
b 840 in.
alot of the bots answers were wrong.
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The appropriate metric unit for the mass of concrete in a section of sidewalk is a kilogram (option a) since it is a larger unit that can accommodate the mass of concrete.
The option that is likely to have a mass close to 2 kilograms is a pineapple (option b), as pineapples generally have a weight in the range of 1-2 kilograms.
To convert 3,500 mg to grams, you would divide by 1,000 since there are 1,000 milligrams in a gram. Therefore, the correct answer is a) 0.035 g.
To convert 321 L to milliliters (mL), you would multiply by 1,000 since there are 1,000 milliliters in a liter. Therefore, the correct answer is c) 321,000 mL.
If the flower was 20 centimeters tall one week ago and grew 1 meter in 5 days, the current height of the flower can be found by adding the growth (1 meter = 100 centimeters) to the initial height. Therefore, the current height is 20 + 100 = 120 centimeters (option b).
To find the area of a rectangle, you multiply the length by the width. Therefore, the area of the rectangle with a length of 20 inches and a width of 42 inches is 20 * 42 = 840 square inches (option b).