Write your values for a, b, and c at the top of your paper and follow all the instructions. 15 b= 12 с c=15 Taika invested a total of $ (a + b + c + 900) x 1,000 into three investment accounts, payis 3%,4%, and 5% simple interest per year. The annual interest earned on the three investmem was $ (c + 720) x 50. Twice as much money is invested at 3% as invested at 5%. Let x be the amount invested in the 3% account, y be the amount invested in the 4% accou and z be the amount invested in the 5% account. (a) Use the given information to write a system of linear equations for x, y, and z.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Solve q 2 A part olny Plz write the equation in 10 min Put a=15; b=12 and c =15
1. Write your values for a, b, and c at the top of your paper and follow all the instructions.
a=
15
b=
12
C=
15
2. Taika invested a total of $ (a+b+c+900) x 1,000 into three investment accounts, paying
3%,4%, and 5% simple interest per year. The annual interest earned on the three investments
was $ (c + 720) x 50. Twice as much money is invested at 3% as invested at 5%.
Let x be the amount invested in the 3% account, y be the amount invested in the 4% account,
and z be the amount invested in the 5% account.
(a) Use the given information to write a system of linear equations for x, y, and z.
Transcribed Image Text:1. Write your values for a, b, and c at the top of your paper and follow all the instructions. a= 15 b= 12 C= 15 2. Taika invested a total of $ (a+b+c+900) x 1,000 into three investment accounts, paying 3%,4%, and 5% simple interest per year. The annual interest earned on the three investments was $ (c + 720) x 50. Twice as much money is invested at 3% as invested at 5%. Let x be the amount invested in the 3% account, y be the amount invested in the 4% account, and z be the amount invested in the 5% account. (a) Use the given information to write a system of linear equations for x, y, and z.
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