Jerome surveyed 643 skateboarders and found that 209 of them preferred wood skateboards to plastic or aluminum skateboards. Based on the number of people surveyed, what is the most reasonable estimation of the percent of skateboarders who preferred wood skateboards?a)10% b)30% c)40% d)50%
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30% , as: Let the percentage of people preferring wooden skateboards be 'x'. Therefore, x/100*643=209 x/100=209/643 x=209*100/643 x=20900/643 x=32.50....... By rounding it off to 30, we get 30% as answer.
7.3 why did the kindergartener take her books to the zoo?
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Because if they did something wrong in the zoo, then they would be punished by having to sit and read.
so the cheetahs could cheat off of the kindergartener.
Josiah ran 4/5 mile. how many tenths are equal to 4/5 mile? use bar diagrams to find the answer.
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8/10 are equal to 4/5 because 4×2=8 and 5×2=10 so 8/10
What type of graph is represented by the equation: 3x - 2x²
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A quadratic because of the -.
What does "perfect square" me
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Perfect square means when two numbers that are the same are multiplied.
For example, 4 is a perfect square because it can be broken down to: 2 x 2
When 2 numbers that are the same are multiplied to form a third number, that number is the perfect square.
Some other perfect squares are: 9, 16, 25, 36, 49, 64, 81, 100
When broken down, it is respectively.
The sphere at the right fits snugly inside a cube with 8-in. edges. What is the approximate volume of the space between the sphere and cube?