3 years ago

Solve 7m+2n=21 and 10m+4n=-10 with substitution

1 answer:

3 0

I hope this helps you

10m+4n= -10

5m+2n= -5

-5m-2n= 5

7m+2n-5m-2n= 21+5

5m=26 m= 26/5

5.26/5+2n= -5

26+2n= -5

2n= -31

n= -31/2

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The exponential function that models this situation is:

$y(t) = 225(0.75)^{\frac{t}{2}}$

------------------------------------------

A decaying exponential function has the following format:

$y(t) = y(0)(1 - r)^t$

In which:

In this problem:

The stock started at $225, thus $y(0) = 225$ .
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The equation is:

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A similar problem is given at brainly.com/question/24282972

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