Answer:
1. What is the profit from selling 40 candy bars? The profit is 40
2. What is the profit selling 100 candy bars? The profit is -110
3. In order to break even you must
sell 56 candy bars.
4. The minimum number of candy bars you must sell in order to start making a positive profit is 55.6 candy bars .
Step-by-step explanation:
equation: 140+1.50x-4x
140: startup fee
x: (amount) of candy bars
----------------------------------------------
140 + 1.50 × 40 - 4 × 40
= 40
plug in 40 for both x's that are in the original equation. solve it out, and you get 40.
----------------------------------------------
140 + 1.50 × 100 - 4 × 100
= -110
same thing as the part above, but plugging in 100 instead.
----------------------------------------------
now to make the profit and the money you earn even, you have to find what number for x, makes the equation equal to 0.
140 + 1.50x - 4x = 0
after doing that, you solve for x
140 + 1.50x - 4x = 0
subtract 140 from each sides
1.50x - 4x = -140
now subtract 1.50 from 4
-2.5x = -140
now divide -2.5 from both sides which gives the answer:
x = 56
which means that to make it even, you need to sell 56 candy bars
----------------------------------------------
same as above, you solve for x but make the equation equal to 1
140 + 1.50x - 4x = 1
after solving, you get 55.6 candy bars
