can someone write out the equations so i can solve this please.

Midtown delivery service delievers packages which cost $ 2.10 per package to deliver. The fixed cost to run the delivery truck is $ 78 per day. If the company charges $4.10 per package, how many packages must be deliverd daily to make a profit of $36?

Profit= (4.1-2.1)*N -78
solve for N

Charges of −4q are fixed to diagonally opposite corners of a square. A charge of + 5q is fixed to one of the remaining corners, and a charge of + 3q is fixed to the last corner. Assuming that ten electric field lines emerge from the + 5q charge, sketch the field lines in the vicinity of the four charges.

To solve for the number of packages that must be delivered daily to make a profit of $36, we can use the formula:

Profit = (Selling Price - Cost) * Number of Packages - Fixed Cost

In this case, the selling price is $4.10, the cost is $2.10, and the fixed cost is $78. Let's substitute these values into the equation and solve for the number of packages (N):

Profit = (4.10 - 2.10) * N - 78

To make a profit of $36:

36 = (4.10 - 2.10) * N - 78

Now, let's solve for N:

36 = 2 * N - 78
Add 78 to both sides:
114 = 2 * N
Divide both sides by 2:
N = 57

Therefore, to make a profit of $36, Midtown delivery service must deliver 57 packages daily.

To solve for N, which represents the number of packages that must be delivered daily to make a profit of $36, we can use the profit equation:

Profit = (4.1 - 2.1) * N - 78

To isolate N, we will rearrange the equation step by step:

Profit + 78 = (4.1 - 2.1) * N
Profit + 78 = 2 * N
Profit + 78 / 2 = N
(NOTE: Divide both sides of the equation by 2 to cancel out the coefficient of N)

Now, substitute the given profit value of $36 to get:

36 + 78 / 2 = N
36 + 39 = N
75 = N

Therefore, to make a profit of $36, the company must deliver 75 packages daily.