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Juancr4539
01.11.2019 •
Mathematics
What is the easiest way to find the answer?
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Ответ:
multiply the number of ounces by the price per ounce
Blue jelly beans cost 0.28 per ounce and there are 4 ounces
4 * 0.28 = 1.12
red jelly beans cost 0.55 per ounce and there is 3 ounces
3 *0.55 = 1.65
now add the totals: 1.12 +1.65 = 2.77
this is more than the total they want of 2.20
so it is not reasonable.
Ответ:
The question is incomplete. Here is the complete question.
The number of students, S, serviced by the school system in the town of Emor, t years from 2000 can be modeled by the function S(t) = 10000.
. The number of classrooms, C, in the town of Emor, t years from 2000 can be modeled by the function C(t) = 450 + 40t. Let D be the average number of students per classroom in Emor's school system t years from 2000.
Write a formula for D(t) in terms of S(t) and C(t).
Write a formula in terms of t.
D(t) = S(t) / C(t)
D(t) =![\frac{10000.(1.1^{t} )}{450+40t}](/tpl/images/0676/8783/f1135.png)
Step-by-step explanation: First, it is asked to write D(t), which is the average number of students per classroom in terms of students, S(t) and classroom, C(t).
Average is the total number of students divided by the total number of classrooms. Therefore:
D(t) =![\frac{S(t)}{C(t)}](/tpl/images/0676/8783/691fc.png)
Second, to write in term of t, which is time in years, for the average number of students per classroom:
D(t) =![\frac{10000.(1.1)^{t} }{450+40t}](/tpl/images/0676/8783/86775.png)
In this formula it is clear that the average number of students per classroom is dependent of the growth factor of students each year represented by
and the "growth factor" of classroom each year, represented by 40t.