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3 years ago

Rearranging Equations: Solve the equation for y: 8x + y = 14 Solve the equation for x: -9x + 3y = 18

Mathematics

1 answer:

podryga [215]3 years ago

7 0

Answer:

y=14-8x

x= -2 + 3y/9x

Step-by-step explanation:

8x+y=14

isolate y so you get:

y=14-8x

-9x+3y=18

isolate x so you get:

-9x=18-3y

divide on both sides to get x by itself

-9x/-9x 18-3y/-9x

x= -2 + 3y/9x

Hope this helps :)

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Accordin to the given question.

We have an expression

6(2( y + x))

Therefore,

The simplified expression for 6(2( y + x)) is given by

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Answer:

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Step-by-step explanation:

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3 years ago

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Aleks04 [339]

Answer:

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3 years ago

Two boats sail away from a buoy making a 90 degree angle. The first boat is 165 meters away and is traveling at 25 m/s. The seco

NikAS [45]

Answer:

Step-by-step explanation:

lets say in the shown triangle x=165

so speed $\frac{dx}{dt} =25$

and $\frac{dy}{dt} =35$

Also since distance = speed* time

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y = $\frac{35\pi \pi }{60}$

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Now using the pythagorean :

$x^2+y^2=z^2\\so \\165^2+(\frac{7\pi }{12} )^2 =z^2$

derivate the equation so we get :

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3 years ago

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Keith_Richards [23]

Answer:

? = 105

Step-by-step explanation:

Use similar triangles and law of proportions.

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3 years ago