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2 years ago

Solving a System of Linear Equations Using the Graphing

Mathematics

2 answers:

Sphinxa [80]2 years ago

5 0

Answer:

The solution is (22.8, 40.1)

Step-by-step explanation:

Transform the equations to 'y = '

2r + 3y = 169

3y = -2r + 169

y = -2/3 r + 169/3

5r = y + 74

y = 5r - 74.

Now you can use the calculator to draw the graphs or use the equation facility if it has one.

Where the graphs intersect is the solution.

Katen [24]2 years ago

3 0

9514 1404 393

Answer:

(r, y) = (23, 41)

Step-by-step explanation:

See the attachment for the solution.

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2. Which words could be represented by

MakcuM [25]

Answer:

Step-by-step explanation:

nobody answered yet, its between G and H, im leaning more towards G, but J and F are definitely not the answers.

I hope this helps a little bit

7 0

3 years ago

Find the measure of angle a.

xeze [42]

Answer:

<A=50

Step-by-step explanation:

85+x+55+x+50=180

2x+190=180

2x=180-190

2x=-10

x=-5

A=x+55

A=-5+55

A=50

3 0

2 years ago

Read 2 more answers

Find an equation of a line that has a slope 7 and passes through the point 3,11

choli [55]

You’re given that m=7 (slope is 7), so setup the slope-intercept form with that info: y = 7x + b.

Now you need to find b. Plug in (3,11) for x and y, x=3 and y=11.

11 = 7*3 + b

Notice the only variable left is b, so you’ll find b this way.

11 = 21 + b and then subtract 21 from both sides:

11 - 21 = b

-10 = b

Plug that back into the equation and you have y = 7x -10

5 0

3 years ago

The equations x + 5 y = 10, 3 x minus y = 1, x minus 5 y = 10, and 3 x + y = 1 are shown on the graph below. On a coordinate pla

natita [175]

Answer:

The question is missing, so I will answer all the solution for each possible system of two equations.

Step-by-step explanation:

The equations

x + 5 y = 10 (red)

3 x - y = 1 (blue)

x - 5 y = 10 (green)

3 x + y = 1 (purple)

are shown in the picture atatched. The intersection between two lines is the solution of their system.

system:

x + 5 y = 10 (red)

3 x - y = 1 (blue)

solution: (0.938, 1.813)

system:

x + 5 y = 10 (red)

x - 5 y = 10 (green)

solution: (10, 0)

system:

x + 5 y = 10 (red)

3 x + y = 1 (purple)

solution: (-0.357, 2.071)

system:

3 x - y = 1 (blue)

x - 5 y = 10 (green)

solution: (-0.357, -2.071)

system:

3 x - y = 1 (blue)

3 x + y = 1 (purple)

solution: (0.333, 0)

system:

x - 5 y = 10 (green)

3 x + y = 1 (purple)

solution: (0.938, -1.813)

7 0

2 years ago

I am thinking of a number. If you add 3 to the number and then multiply the sum by four, you end up with 48. What is my number?

kap26 [50]

Answer:

Step-by-step explanation:

48 / 4 = 12

12 - 3 = 9

Check Work

9 + 3 = 12

12 * 4 = 48

5 0

2 years ago