A. Bell has kept records of his business transactions in a single entry form, but he did not realize that he had to record cash drawings. His bank account for the year 2011 was as follows: $ $ Balance 1/1/2011 920 Cash withdrawn from bank 12,600 Receipts from debtors 94,200 Trade accounts payable 63,400 Loan from F. Tung 2,500 Rent 3,200 Insurance 1,900 Drawings 11,400 Sundry expenses 820 Balance 31.12.2011 4,300 97,620 101,590

Bell has kept records of his business transactions in a single entry form, but he did not realize that he had to record cash drawings. His bank account for the year 2011 was as follows: $ $ Balance

Step-by-step explanation:

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