Which fraction is equivalent to 0.142857

1/7

Step-by-step explanation:

1/7 = 0.14285714285

Step-by-step explanation: To write 0.142857 as a fraction you have to write 0.142857 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.

0.142857 = 0.142857/1 = 1.42857/10 = 14.2857/100 = 142.857/1000 = 1428.57/10000 = 14285.7/100000 = 142857/1000000

And finally we have:  

0.142857 as a fraction equals 142857/1000000

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