The number of boys and girls participated in a trekking event are 1/12 and 13/17 of the total number of students. If the total number of students was 408 , how many did not participate in the event?D

134

Step-by-step explanation:

1/12th of 408 is 34, 13/17ths of 408 is 312, so 346 students participated. 480-346 is 134.

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

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. writing something that happened to you

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step-by-step explanation: