Mr. Roper has eight teams of students in his debate class. Their grades on the last debate assignment are denoted by the set (99
1 answer:
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Answer:
The projected enrollment is
Step-by-step explanation:
Consider the provided projected rate.
Integrate the above function.
The initial enrollment is 2000, that means at t=0 the value of E(t)=2000.
Therefore,
Now we need to find
Hence, the projected enrollment is
Answer:
Amount invested at 7% = 16000
Amount invested at 9% = 12000
Step-by-step explanation:
Let x be the amount invested at 7% and y be the amount invested at 9%.
Since the total amount invested is $28000, therefore, we can set up the first equation as:
Secondly, we are give that sum of two investments is $2200. Therefore, we can write the second equation as:
Now we need to solve these two equations to get the values of x and y.
First of all, we multiply the second equation with 100 in order to get rid of decimal values.
Let us use substitution method here. First of all we will solve for y from first equation and plug that into second equation.
Therefore, amount invested at 7% is $16000 and amount invested at 9% is 28000-16000=$12000.