How many liters are in 450 milliliters?
0.45 liters.
45 liters.
4.5 liters.
0.045 liters.
Correct Answer : A
To change mL to L, use the relation 1000 mL=1 L and apply dimension analysis as follows:
\(450\ mL\ast\frac{1L}{1000mL}=0.45\ L\)
Thus, 450 mL is equal to 0.45 L.
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Related Questions
Correct Answer is ["19"]
Explanation
First determine the number of classes in a population of 6734 students
\(6734\ students\ast\frac{1\ class}{30\ students}=224.467\ classes\)
There are about 224 classes and if we assume 1 class to be represented by 1 teacher, then the number of teachers to be hired is:
Number of teachers to be hired = 224 - 205 = 19 teachers
Correct Answer is A
Explanation
A ratio of the form a:b=c:d is converted to a proportion as
\(\frac{a}{b}=\frac{c}{d} \)
where b and d are not equal to zero. Now applying the same concept to 7:10=21:X yields,
\(\frac{7}{10}=\frac{21}{X}\)
Find the value of X by cross-product
\(7X=21\ast10\)
Divide both sides by 7
\(\frac{7X}{7}=\frac{210}{7} X=30 \\Thus,\ the value\ of \ X is \ 30. \)
Correct Answer is A
Explanation
The ratio 17:1000=X:10 can be written in proportion as:
\(\frac{17}{1000}=\frac{X}{10}\)
The value of X is determined by cross-products
\(17\ast10=1000X\)
170=1000X
Divide both sides by 1000
\(\frac{170}{1000}=\frac{1000X}{1000}\)
0.17=X
Thus, the value of X is 0.17
Correct Answer is ["2000"]
Explanation
Use the relation 1kg=1000 g to convert between kg and grams. Thus, 2 kg to g becomes
\(2\ kg\ast\frac{1000g}{1kg}=2000\ g\)
Thus, 2 kg is 2000 g
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