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maxonik [38]
3 years ago
11

The linear combination method is applied to a system of equations as shown.

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

(9,3)

Step-by-step explanation:

4(.25x + .5y = 3.75) → x + 2y = 15

(4x – 8y = 12) → x – 2y = 3

2x = 18

Divide both sides by 2

x = 9

Substitute x = 9 into  x + 2y = 15

9 + 2y = 15

Subtract 9 from both sides

2y = 6

Divide both sides by 2

y = 3

Solution

(9, 3)

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interest earned in first year will be  5.2% of  amount of money invested by Lian .

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