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Tanzania [10]
3 years ago
5

Of the 1640 students in rolled at school 50% come to school by bus 35% come by car and the rest of the students walk to school h

ow many students of the school
Mathematics
1 answer:
Eva8 [605]3 years ago
8 0

Answer:

256

Step-by-step explanation:The total amount os students is 1640 which is equivalent to 100% so we get 50% of 1640 which is equall to 820 students after that we also find 35% of 1640 which is equall to 564 students. After that we sum them up which we get 1384 students and subtract it from 1640 and get 256 students.


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Answer:

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Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

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This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

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In this question, we have that:

2x^2 + x - 6 = 0

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So the roots are x = (\frac{3}{2}, -2), which is given by option C.

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