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3 years ago

6

If the equation is 5x+4y and x is 6 what is y

1 answer:

Dafna1 [17]3 years ago

4 0

Answer:

The value of y is -7.5

Step-by-step explanation:

Given:

equation = 5x+4y

x = 6

To Find:

The value of y

Solution:

We can find the value of y by substitution method.The substitution method is a way of solving a system of equations by expressing the equations in terms of only one variable.

The substitution method for solving systems of equations is a way to simplify the system of equations by expressing one variable in terms of another, thus removing one variable from an equation.

Now

5x + 4y

5x = -4y

$y = -\frac{5x}{4}$ -----------------------(1)

on substituting the y value in the equation (1),

$y = -\frac{5\times 6}{4}$

$y = -\frac{30{4}$

y = -7.5

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$\vec r(t)=(1-t)(0,0,0)+t(-4,5,-5)=(-4t,5t,-5t)$

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$\vec r'(t)=(-4,5,-5)$

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$W=\displaystyle\int_0^1(125t^2+5t+(25t+1)e^{-4t})\,\mathrm dt=\boxed{\frac{2207}{48}-\frac{129}{16e^4}}$

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