3 years ago

2x-3y=133x+y=3can you please explain the steps on how to get the answer?

1 answer:

5 0

Lets do this the elimination way. to do this, you multiply the bottom equation by three, and now you have
2x-3y=13
9x+3y=9

lets add these two equations together. you get
11x=22
x=2
now substitute 2 for x in the first equation.
2(2)-3y=13
4-3y=13
-3y=9
y=-3

y=-3, x=2

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John has 5,000 to invest in a saving account that has interest compounded annually. If he wants his money to double in 8 years w

ololo11 [35]

5 000 * X ^(8) = 10 000

x^(8) = 10 000 / 5000

x ^(8)= 2

x = 2^(1/8)

x≈ 1.09

intrest rate must be 9%

7 0

3 years ago

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