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Alex73 [517]
3 years ago
14

An Investment of $12,000 is losing value at a rate of 4% each year. Write an exponential function to model the situation, then f

ind the value of the Investment after 9 years.
Mathematics
1 answer:
adelina 88 [10]3 years ago
5 0

Answer:After 9 years:

7,680

Step-by-step explanation:

4%=0.04

1 year = 12,000 x 0.04=<u>480</u>

9 years= 480 x 9 = <u>4320</u>

12,000-4320=<u> 7,680</u>

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3 years ago
aul bought 9 total shirts for a total of $72. Tee shirts cost $10 and long sleeve shirts cost $7. How many of each type of shirt
vodomira [7]

Set up a system of equations:


\text{Total shirts bought}

x + y = 9


\text{Total cost}

10x + 7y = 72


x represents how many tee shirts were bought, and y represents how many long sleeve shirts were bought.


For the first equation, subtract y from both sides to get x by itself:


x = 9 - y


We'll now use substitution. Since x is equal to a value, we can substitute this value for the other equation:


10(9-y) + 7y = 72


Distribute the 10 to both terms in parentheses:


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Combine like terms:


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Subtract 90 from both sides:


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Divide both sides by -3 to get y by itself:


y = 6


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Now you have a value for y. Input this value into the first equation:


x + 6 = 9


Subtract both sides by 6 to get x by itself:


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4 0
3 years ago
Read 2 more answers
Need some help please would really be greatful
Gnesinka [82]

Answer:

x = 100°

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(n-2) * 180°

n is the number of sides

Here n = 5, so the sum of all angles is (5-2) * 180° = 540°

x + 2x + 86 + 92 + 62 = 540

3x = 300

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3 years ago
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Cloud [144]

Answer:

B) AD/DE = BD/AD

Step-by-step explanation:

6 0
3 years ago
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