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百分比关系・求百分数进阶
The amount of Hanna's bill for a food order was $50. Hanna gave a tip of 20% of the amount of the bill. What is the amount, in dollars, of the tip Hanna gave?
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百分比关系・求百分数进阶
The number of zebras in a population in 2018 was 1.27 times the number of zebras in this population in 2014. If the number of zebras in this population in 2014 is p% of the number of zebras in this population in 2018, what is the value of p, to the nearest whole number?
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百分比关系・求百分数挑战
The positive number a is 2,241% of the sum of the positive numbers b and c, and b is 83% of c. What percent of b is a?
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百分比关系・求百分数基础
What is 20% of 440?
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百分比关系・求百分数基础
There are 450 tiles in a box. Of these tiles, 6% are black. How many black tiles are in the box?
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百分比关系・求百分数挑战
In a sample, 80% of the items are faulty. There are 88 faulty items in the sample. How many total items are in the sample?
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百分比关系・求百分数挑战
The positive number a is 230% of the number b, and a is 60% of the number c. If c is p% of b, which of the following is closest to the value of p?
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百分比关系・求百分数挑战
For \( x>0 \) , the function \( f \) is defined as follows:
\( f\left(x\right) \) equals 201% of x
Which of the following could describe this function?
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百分比关系・求百分数挑战
According to a set of standards, a certain type of substance can contain a maximum of 0.001% phosphorus by mass. If a sample of this substance has a mass of 140 grams, what is the maximum mass, in grams, of phosphorus the sample can contain to meet these standards?
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百分比关系・求百分数挑战
37% of the items in a box are green. Of those, 37% are also rectangular. Of the green rectangular items, 42% are also metal. Which of the following is closest to the percentage of the items in the box that are not rectangular green metal items?
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百分比关系・求百分数挑战
Jennifer bought a box of Crunchy Grain cereal. The nutrition facts on the box state that a serving size of the cereal is \( \frac{3}{4} \) cup and provides 210 calories, 50 of which are calories from fat. In addition, each serving of the cereal provides 180 milligrams of potassium, which is 5% of the daily allowance for adults. If p percent of an adult’s daily allowance of potassium is provided by x servings of Crunchy Grain cereal per day, which of the following expresses p in terms of x ?
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百分比关系・求百分数挑战
A school district is forming a committee to discuss plans for the construction of a new high school. Of those invited to join the committee, 15% are parents of students, 45% are teachers from the current high school, 25% are school and district administrators, and the remaining 6 individuals are students. How many more teachers were invited to join the committee than school and district administrators?
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