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kvasek [131]
3 years ago
6

2x-y=-1 3x-y=2 in simultaneous equations

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

Let's solve for x.

2x−y=−13x−y

Step 1: Add 13x to both sides.

2x−y+13x=−13x−y+13x

15x−y=−y

Step 2: Add y to both sides.

15x−y+y=−y+y

15x=0

Step 3: Divide both sides by 15.

15x

15

=

0

15

x=0

Answer:

x=0

Step-by-step explanation:

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GaryK [48]3 years ago
6 0

Answer:

{x,y}={3,7}

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How to solve x/3 + 4 = -2
r-ruslan [8.4K]

Answer:

x=−18

Step-by-step explanation:

Let's solve your equation step-by-step.

x

3

+4=−2

Step 1: Simplify both sides of the equation.

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x+4=−2

Step 2: Subtract 4 from both sides.

1

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x+4−4=−2−4

1

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x=−6

Step 3: Multiply both sides by 3.

3*(

1

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x)=(3)*(−6)

x=−18

5 0
2 years ago
Read 2 more answers
What is the area of △ABC?
kirza4 [7]
Answer:
Area = 492.4 m²

Explanation:
The area of the triangle can be calculated using the side-angle-side method as follows:
Area = 0.5 * first side * second side * sin(angle included between these two sides)

This rule is illustrated in the attached image.

Now, we have:
AB = 40 m
BC = 25 m
angle B which is the angle included between AB and BC = 80 degrees

The given angle is included between the two given sides, therefore, we can apply the above rule to get the area.
Area of triangle = 0.5*40*25*sin(80)
Area of triangle = 492.4 m²

Hope this helps :)

3 0
3 years ago
Lee saves $85.75. She uses $32.95 of the money to buy a baseball glove. She also wants to buy a camera that costs $58.99. How mu
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Answer:

6. 19

Step-by-step explanation:

4 0
3 years ago
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Sanchez applied 6 fluid Ounces of an herbicide per acre on 300 acres of com. How many gallons
kumpel [21]

Answer:

Sanchez applied 1,800 fluid ounces of herbicide to his 300 acres of corn.

Step-by-step explanation:

Let's identify what we already know:

1) Sanchez has 300 acres of corn

2) For every 1 acre, Sanchez applies 6 fluid ounces of an herbicide.

So, we need to figure out how many fluid ounces Sanchez used for the entire six acres. We can create a formula for this:

300 acres x 6 fluid ounces = x

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3 years ago
The answer to the picture please
Vinil7 [7]

the required ans is 3√b+b/3b

8 0
3 years ago
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