3 years ago

Solve -5 = x - 3y Solve 11 = -3x + 7y

Mathematics

1 answer:

Talja [164]3 years ago

4 0

Answer:

x=1, y=2. (1, 2).

Step-by-step explanation:

x-3y=-5

-3x+7y=11

----------------

x=3y+(-5)

x=3y-5

-3(3y-5)+7y=11

-9y+15+7y=11

-2y=11-15

-2y=-4

2y=4

y=4/2

y=2

x-3(2)=-5

x-6=-5

x=-5+6

x=1

You might be interested in

Jim borrows $790 for 4 months. He pays a simple interest rate of 6%. How much interest must he pay? Round your answer to the nea

nydimaria [60]

Answer:

Jim will be paid $150 or 30% to his account.

Step-by-step explanation:

Have a great day :)

3 0

3 years ago

Find the equation of the line

Gre4nikov [31]

Answer:

y= - 1/6x -1

Step-by-step explanation:

Given:

y= 6x -2

and point (6, -2)

Perpendicular line has slope of reciprocal opposite to the given: - 1/6, so the equation:

y= -1/6x + b

Finding b using the intersected point:

-2= -1/6*6 +b
b= -2 +1= -1

So the equation is:

y= - 1/6x -1

5 0

3 years ago

Multiply: 0.27055 · 1,000

photoshop1234 [79]

0.27055*1,000=

270.55

-Hunter

4 0

2 years ago

Read 2 more answers

5. What is the equation of a line with a y-intercept at (0,6) and a slope of 3?

andreev551 [17]

Answer:

Step-by-step explanation:

You're correct. The Y intercept is the B. And 3 the slope.

8 0

3 years ago

I have no clue on how to do this

iren [92.7K]

Answer: neather do i add picture

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers