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3 years ago

Use the matrix tool to solve the system of equations. Enter the answer as an

Mathematics

1 answer:

Andreyy893 years ago

6 0

Answer:

(-1/2,2)

Step-by-step explanation:

2(4x+y=0)=8x+2y=0

8x+2y=0

-(8x-y=6)

3y=6

Divide both sides y=2

4x+2=0

4x=-2

divide both sides x=-1/2

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blondinia [14]

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6 0

2 years ago

John has $4000 in his savings account.each month he withdraws $70 from his account which is the type of function that models thi

r-ruslan [8.4K]

Answer:

y = 4000 - 70x

Linear function.

Step-by-step explanation:

Let x = number of weeks.

In 1 week, he withdraws $70.

That means -70 in 1 week.

After the second week, he will have withdrawn 2 times $70, or

-70 × 2

After 3 week, he will have withdrawn -70 × 3

After x weeks, he will have withdrawn $70 × x,or simply -70x.

He starts with 4000, so after x weeks, he has 4000 - 7x.

Let y = the amount of money at week x.

The equation is

y = 4000 - 70x

This is a linear function.

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2 years ago

According to some students, What's is the true purpose of homework? 19 letters page 156 Algebra 1 worksheet

Bingel [31]

(wouldn't this be English?)
The true purpose of homework to me is to learn more and to help you remember what you have learned.

4 0

3 years ago

ASNWER CORRECTLY AND YOU WILL GET 40 POINTS ALONG WITH BRAINLIEST

FromTheMoon [43]

Answer:

Step-by-step explanation:

What we know:

ABD is a straight angle, it measures 180 degrees
Angle CBA + CBD = 180 degrees
Angle GFH = CBA (they are alternate exterior angles)

Equation:

GFH + CBD = 180

Substitute:

3x + 6x = 180

Add:

3x + 6x = 180

9x = 180

Divide:

9x = 180

/9 /9

x = 20

Substitute:

GFH = 3x

GFH = 3(20)

GFH = 60

m<GFH is 60°

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3 years ago

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kiruha [24]

Answer:

Step-by-step explanation:

A)55 + 12 + 43=110

B) 55+14+40=98

C)55 + 16 +37 =108

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3 years ago