The elevator paused for 10 seconds after you stepped on before beginning to rise at a constant rate of 8 feet per seconds. Propo
2 answers:
Answer:
<h2>Non-proportional.</h2>Step-by-step explanation:
In this situation, the elevator started to move 10 seconds after you stepped on, that means, for 10 seconds, the elevator didn't move at any rate, so the slope of the line that describes this interval is zero, horizontal.
After those 10 seconds, the elevator started to move with a rate of 8 feet per seconds.
So, as you can see, there are two different ratios in the same problem, or in the same graph, that means, this situation is represented by a piecewise function, because there are two differente behaviours with different ratios, that makes the situation non-propotional.
If you graph this problem, there would be an horizontal line at the beginning at and then a proportional line after
, that change makes the situation non-proportional.
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We know that:
Profit = Revenue - Cost
Let us say x number of candies are made per week.
Finding Cost per week:
Cost of making 1 bar = 0.15
Cost of making x bars = 0.15x
Fixed rate of making candies per week = 600
Total cost of making x candies per week = 600 + 0.15x
Now let us find Revenue:
Selling price of each bar = 1.50
Selling price of x bars = 1.50x
Now we have to find profit,
Profit = Revenue - Cost
In order to have profit Revenue - Cost >0
So plugging values of revenue and cost to get number of candies,
x>444.44
Rounding off
x>444
Answer: The company must sell greater than 444 candies in order to make profit.
Points that are given on x+y=4 are (0,4),(3,1) and (4,0) and points that are give for x-y=2 are (0,-2),(2,0) and (3,1)
