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3 years ago

What is the solution to this system of equations using the linear combination method?

Mathematics

2 answers:

aniked [119]3 years ago

7 0

Answer:

$\huge \boxed{x=-3 \ \mathrm{and} \ y=17}$

$\rule[225]{225}{2}$

Step-by-step explanation:

Subtracting both equations:

5x + y = 2

- (4x + y = 5)

————————

1x + 0y = -3

x = -3

Substituting x = -3 for the second equation:

4(-3) + y = 5

Solving for y.

-12 + y = 5

y = 17

$\rule[225]{225}{2}$

Gnom [1K]3 years ago

4 0

X= -3 y= 17 is the answer

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In a salad recipe, the ratio of carrots to cucumbers must remain constant. The table below shows some possible combinations of c

skelet666 [1.2K]

I think the answer is B

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3 years ago

2.375 in expanded form

kari74 [83]

Answer:

2375^-3

Step-by-step explanation:

Move the decimal place from 2.375 to the back of the number so it should look like this, 2375.

Than move the decimal place back to its original spot and count the amount of spaces you move. Remember, if you move forward, your exponent should be negative. For example, if the problem is 6.321, you would move the decimal place to the back like this, 6321. And then move it back to where it originally was, 6.321, the amount of spaces I moved was 3 spaces and I moved forward so It would be 6.321^-3

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3 years ago

An architect is designing a sandwich shop, as shown in the

STALIN [3.7K]

The length of both rooms is 10 meters and the width for the kitchen is 5 meters, while the one for the dining room is 9 meters.

<h3>How to find the length of the rooms?</h3>

Both rooms have the same length but different areas and different widths. This common measurement can be found using the GFC or the greatest common factor. To do this, divide each number by 1,2,3, etc., and find the greatest common number (only integers are valid).

50: 50 25 10 5 1
90: 90 45 30 18 15 10 9 6 5 3 2 1

The greatest common number is 10, so 10 meters is the length of the room.

<h3>How to find the width?</h3>

Use the formula

A = lenght x width or width = area / lenght

Kitchen.

Width: 50 / 10
Width: 5 meters

Dining room:

Width: 90 / 10
Width: 9 meters

Note: In this question the diagram is missing; below, I attach the diagram.

Learn more about greatest common factor in: brainly.com/question/282609

3 0

2 years ago

Solve ASAP<br>i dont get it

andreev551 [17]

The slope is the coefficient of x when the coefficient of y is 1.
The slope is -0.5
The y-intercept is where x=0
y = 17 - 0.5 (0)
y = 17
The y-intercept is 17.

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3 years ago

A homes value increases at an average rate of 5.5% each year the current value it is $120,000 what function can be used to find

likoan [24]

Around this time many people find home prices going up dramatically. Let's start with the X factor. If we know the starting is $120,000, the we know the initial velocity. To find the final but the very simple equation one may use is; P=(120000)^x\0.5

Cheers

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3 years ago