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keke6361
30.06.2019 •
Mathematics
Which of the following equations is not a proportion? a: 1.5/3 3/9 b: 22/33 = 4/6 c: 2/3 = 142/213 d: 14/7 = 7/3.5
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Ответ:
proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.
let's check the answers to see if they are proportional.
question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.
question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.
question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other
question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.
Ответ: