Kimberly got 6 problems wrong on a test of 25 questions. What percent of the questions did she got correct?

1 answer:

4 0

This can be turned into she got 19/25. This is a fraction and, in the fraction, the / symbolizes ÷. So we can do 19÷25. This equals 0. 76. This is a decimal and, to get a decimal to a percentage, you times by 100. 0. 76×100 is 76. So the answer is 76%

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Step-by-step explanation:

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Answer:

The probability that a Tech High student fails math is 0.1006

Step-by-step explanation:

21% students are taking class with Mary.

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Now we are supposed to find the probability that a Tech High student fails math.

$P(\text{Tech High student fails math}) = P(\text{taking class with Mary})\times P(\text{Mary students fail})+P(\text{taking class with Tom}) \times P(\text{Tom students fail})+P(\text{taking class with Alex}) \times P(\text{Alex student fail})$