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grin007 [14]
3 years ago
5

Find the solution of the system of equations. 10x + y = 16 -10x + 5y = 50

Mathematics
1 answer:
slega [8]3 years ago
4 0

Answer:

x= 0.5 y=11

Step-by-step explanation:

solve like simultaneous equations

(10x + y = 16)  + ( - 10x + 5y = 50)

(adding the equations together as that is how you get rid of the x values)

so you are left with 6y= 66

y=11

now substitute y into one of the equations (doesn't matter which)

10x + 11= 16

10x= 5

x=0.5

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f(-3) would be 36.

When looking at synthetic division, the numbers across the top represent the coefficients of x^2, x and the constant in that order. Therefore, the equation is as follows.

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Dalton built a linear model to show the height of a meteor falling to the Earth. The meteor starts at 100 km above the Earth's s
alukav5142 [94]

Answer:

The domain represents the time of motion of the meteor as it falls from 100 km height above the Earth's surface at a speed of 20 km

Step-by-step explanation:

The given parameters from the question are;

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The rate at which the meteor falls = 20 km per second

The 'x' values represent the time in seconds and the 'y' values represent the meteor's height

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Therefore, the domain represent the time it takes the meteor to reach the given 100 km height above the Earth's surface

At the start x = 0 seconds

On the Earth's surface, y = 0, therefore;

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Therefore, the domain is 0 ≤ x ≤ 5.

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3 years ago
Can someone isolate the variable “n” and show steps?
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Answer:

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