Which description best fits the graph?
1 answer:
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Answer:
Rate of Decay = 8%
Step-by-step explanation:
The decay formula is:
Where F is the final value (here, it is given as "Y")
P is the initial value (here, given as 20,000)
r is the rate of decay (what we need to find)
t is the time (given as 2)
Comparing both the equations:
We see that:
1 - r =0.92
We solve for "r":
1 - 0.92 = r
0.08 = r
The rate of decay is 0.08, as a percentage, we need to multiply by 100, so we have:
0.08 * 100 = 8%
Rate of Decay = 8%
Answer:
Additional <em>26</em> pendants are to be sold to make profit.
Step-by-step explanation:
Rent of booth at the craft fair = $200
Cost of material for each pendant = $7.80
Let Kelsey makes number of pendants.
To calculate the total spending, we have to add the rent of booth at the craft fair and cost of material for number of pendants.
Cost of material for number of pendants = Cost of material for each pendant multiplied by number of pendants
Cost of material for number of pendants = $7.80
So, total cost = $200 + $7.80
Now, each pendant is sold at $13.50
So, total money made by selling pendants = $13.50
For making profit, total money made must be greater than the total cost.
Therefore, the inequality becomes:
Let us solve the inequality now:
So, at least 36 pendants are to be sold to make a profit.
Additional 36-10 = <em>26</em> pendants are to be sold to make profit.