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4 years ago

What is x and y using substitution

Mathematics

2 answers:

klasskru [66]4 years ago

6 0

X-5y= 36
2x+y=-16 from the first line, x=5y+36, then substitue for x below

2(5y+36) + y =-16 so 10y+72+y=-16, so 11y+72=-16, so 11y=-88 or y=-8
y=-8, put this in your equation and you get x+40=36 or x=-4,
so your answer is x=-4 and y=-8

Bad White [126]4 years ago

5 0

X-5y=36
x+y=-26

y=-26-x

x-5(-26-x)=36
x+130+x=36
2x+130=36
2x=36-130
2x=-94
x=47

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3 years ago

A student desired to invest $1,540 into an investment at 9% compounded semiannually for 6 years. With all else equal, what is th

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The future value of this initial investment after the six year period is $2611.6552

Step-by-step explanation:

Consider the provided information.

A student desired to invest $1,540 into an investment at 9% compounded semiannually for 6 years.

Future value of an investment: $FV=P(1+r)^n$

Where Fv is the future value, p is the present value, r is the rate and n is the number of compounding periods.

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4 years ago

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3 years ago

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Step-by-step explanation:

From the given table we can see that this is not representing a linear function as the rate of change is not constant.

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Now here at n=1 , f(n)=8

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3 years ago

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