3 years ago

Solve each system by adding or subtracting -2x-y=-5,3x+y=-1

Mathematics

1 answer:

VashaNatasha [74]3 years ago

4 0

Answer:

(-6,17)

Step-by-step explanation:

-2x-y=-5,

3x+y=-1

Add the two equations together to eliminate t

-2x-y=-5

3x+y=-1

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

x = -6

Now that we know x, we can substitute it into one equation to find y

3x+y = 1

3(-6) +y = 1

-18 +y = -1

Add 18 to each side

-18+18 +y = -1+18

y = 17

(-6,17)

You might be interested in

one end of a tent is a triangle. the height of the triangle is 1.5 m and the base is 2.5 m. what is the area of the triangle?

Anarel [89]

Answer:

1.5×2.5/2=1.875.

Step-by-step explanation:

We all know that area of triangle is base into hight upon 2.

3 0

1 year ago

Graph the equation.

Natalija [7]

Answer:

Step-by-step explanation:

nice ;)

7 0

3 years ago

A parachutist's rate during a free fall reaches 198 feet per second. What is this rate in meters per second? At this rate, how m

amm1812

Answer:

300 feet

Step-by-step explanation:

If we were using feet the expression would be 198x, where x is feet per second

Since they are asking in meters we need to convert feet to meters

When you do that you get 60

Now the expression is 60x

When you plug 5 into the equation it is 300

3 0

3 years ago

What does 1 1/16-3/8 equal?

Artemon [7]

Answer:

$\frac{11}{16}$

6 0

3 years ago

How do I do this ???

Triss [41]

Answer:

He can cut 6 sections this length.

Step-by-step explanation:

he has

7(12) = 84 inches of rope.

84-34.5 = 49.5

49.5/8.25 = 6

4 0

3 years ago

Read 2 more answers