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Anonymous users2024-02-111. A bottle of beverage weighs 50 100 kilograms, which can be written as 50% kilograms ( ) Correction: A bottle of beverages weighing 50 100 kilograms can be written as 50% of a kilogram.
Reading: 15 percent 100, 15 100 reading: 15 percent ( ) Revision: 15 percent reading: 15 percent 15 100 reading: 1 hundred percent fifteen.
3. The numerator of the percentage can be an integer, a decimal number, and it can be greater than 100 ( ) 4. The male students in the Liujia class account for 57% of the class, and the female students account for 43% of the total number of the class ( 5. The percentage is the fraction with a denominator of 100 ( ).
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Anonymous users2024-02-101. Wrong. Percentages cannot be in units, only ratios.
2. Wrong. Fifteen per cent is read as fifteen per cent and 15,100 as fifteen per cent.
3. Yes. In many news, you can hear that the growth rate is more than 100%.
4. Right. Think of the whole class as a unit "1".
5. Right. That's how percentages are defined.
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Anonymous users2024-02-091. Wrong. 2. False, read 15 percent in the front and 15 percent in the back.
3. Wrong. 4. Right.
5. Wrong.
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Anonymous users2024-02-08The first question is wrong, the kilogram cannot be read or written at 50%, so to speak, the number should be said accurately, and it can also be read as a fraction.
Question 2 Error, two readings are reversed.
Question 3 Error Do not be a decimal.
Question 4 Correct The ratio of men and women adds up to exactly 100%.
Question 5 Error Percentages can be natural numbers and integers.
I hope I can solve your doubts.
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Anonymous users2024-02-071. Wrong. 2. False, read 15 percent in the front and 15 percent in the back.
3. Yes, there are 200% in word.
4. Right. 5. Wrong.
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Anonymous users2024-02-061) False, the correct equation should be:
2) Wrong, the correct calculation of the wisdom closed boy formula should be:
3) False, the correct state should be preceded by Wang
So the answer is: ;
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Anonymous users2024-02-051.False, 14 5 is not an integer, not multiples or factors, because these are relative to the divisible.
2.Wrong, the unit of circumference is centimeters, and the unit of area is square centimeters, how to compare even the units are different?
3.False, the square is a rectangle with four sides of equal length, so it can only be said that the square is a special rectangle.
4.False, e.g. this number is 0.
5.False, the reciprocal of 0 is actually infinity.
6.False, 1 is their common factor.
7.Right. 8.Right.
9.Wrong, it's a finite decimal.
10.False, just an approximation of .
11.Wrong, it is an infinite non-cyclic decimal, that is, an irrational number.
12.Wrong, for example, 7 and 8 are coprime, 8 is not a prime number.
13.False, the square of the radius of the circle and the area are proportional to each other, because s = r 2.
14.Right. 15.False, it should be read as two hundred and twenty-five thousand six hundred forty-seven.
16.Wrong, the units of perimeter and area are different and cannot be compared.
17.Right. 18.Wrong, it's 2.
19.False, two numbers must have an greatest common factor, and there must also be a least common multiple.
20.Right.
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Anonymous users2024-02-041 4 per ton of steel and 3 4 per ton of cotton weigh equally ( ) are 3 4 tons.
5 is to find 12 of 2 5 is what is 5 ( ).
12 of 2 5 is 24 5
3. The product is less than the multiplier ( ).
The multiplied is multiplied by a true fraction, and the product is less than the multiplier.
4. There are only 2 fractions greater than 4 9 and less than 7 9 ( ) There are many, which can be said to be infinite, such as 5 9, 6 9, 11 18....
4 tons of 2 15 is 1 10 tons ( ).
2 9 means the addition of 5 2 9s ( ).
2 9 5 is the sum of 5 2 9, and this formula represents 2 9 times of 5.
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Anonymous users2024-02-031.Because the mass is equal.
2.Since 2 5 is a number, it can only be stated that a number is 2 53Because less than.
4.There are an infinite number of fractions greater than 4 9 and less than 7 9, or there are only 2 fractions greater than 4 9 and less than 7 9 with a denominator of 9.
5.Because 3 4 * 2 15 = 1 10
6.Because 2 9 + 2 9 + 2 9 + 2 9 + 2 9 = 5 * 2 9
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Anonymous users2024-02-021.Two triangles of equal base and height can be put together to form a parallelogram. （2.The base of the parallelogram is enlarged by 3 times, the height is reduced by 3 times, and the area remains the same. （3.Equations with unknowns are called equations. （
4.If a is less c than b, then a = b-c（
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Anonymous users2024-02-011. Interest rate = interest amount principal time 100%.
2. The sugar content of the remaining sugar water is still 30%.
5. 25% less
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