Which ordered pair is a solution of the equation? y=-2x-5y

Mathematics

2 answers:

Otrada [13]3 years ago

7 0

-2.9 hope this helps !

Allushta [10]3 years ago

5 0

Answer:

if y = 5 than 2x - 5 = 5 we can simplify this too 2x = 10 ( by adding the 5 to both sides ) now we can simplify and get x = 5 ( by dividing by 2 ) so we get (5,5) as our first point. well since its in slope intercept form ( y = mx + b ) we can graph it.

Step-by-step explanation:

You might be interested in

the science teacher has 7 packs of seeds and 36 students if the student should each plant the same number seeds how many each st

Masteriza [31]

Answer:

each student would plant 252 seeds

4 0

3 years ago

Jason had $32. He spent all the money on buying 4 CDs for $x each and 2 magazines for $y each. If Jason had bought 5 CDs and 2 m

Leni [432]

You can set up two equations from the information given. I will set them up for you:

32 = 4x + 2y
36 = 5x + 2y

Let's solve the first equation to come up with a value for y.

32 = 4x + 2y
32 - 4x = 2y
16 - 2x = y

Now we plug y into the other equation.

36 = 5x + 2(16-2x)
36 = 5x + 32 - 4x
4 = x

Now we have our real x value and we can plug it into the first equation.

32 = 4(4) + 2y
32 = 16 + 2y
16 = 2y
8 = y

Since x = 4 and y = 8, you get the final coordinates of (4,8).

Your answer is the second statement provided above.

3 0

3 years ago

- a(-4-5a) - 3a(2 + a) =

Lorico [155]

Answer:

Let's simplify step-by-step.

(−a)(−4 − 5a) − 3a(2 + a)

Distribute:

= (−a)(−4) + (−a)(−5a) + −3a^2 + −6a

= 4a + 5a^2 + −3a^2 + −6a

Combine Like Terms:

= 4a+5a^2 + −3a^2+ −6a