3 years ago

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.

Mathematics

1 answer:

sertanlavr [38]3 years ago

5 0

9514 1404 393

Answer:

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

Step-by-step explanation:

Equate the two expressions for y.

-5x -9 = 2x +5

-14 = 7x . . . . . . . .add 5x-5

-2 = x . . . . . . . . . divide by 7

Then ...

y = 2(-2) +5 = 1

The solution is (x, y) = (-2, 1).

You might be interested in

Help me please? i needa help. am bad at maths.

Usimov [2.4K]

Answer:

6/3 or 2 (you should probably write 2 though)

(there’s a couple notes in the pic too that will help you with slopes)

7 0

3 years ago

Hamburger sells for 3 pounds for 6$. If Samantha buys 10 pounds of hamburger, how much will she pay?

Afina-wow [57]

She will pay 20$ for 10 pounds of hamburger

3 0

3 years ago

Read 2 more answers

8 to the power of 15 over 8 to the power 13 simplified

Aleksandr-060686 [28]

$\dfrac{8^{15}}{8^{13}}=8^{15-13}=8^2=64\\\\Used:\\\\a^n:a^m=\dfrac{a^n}{a^m}=a^{n-m}$

4 0

3 years ago

I don't know how to do this

Dvinal [7]

$a_1=2;\ r=-\dfrac{3}{2}\\\\a_2=a_1r\to a_2=2\cdot\left(-\dfrac{3}{2}\right)=-3\\\\a_3=a_2r\to a_3=-3\cdot\left(-\dfrac{3}{2}\right)=\dfrac{9}{2}\\\\a_4=a_3r\to a_4=\dfrac{9}{2}\cdot\left(-\dfrac{3}{2}\right)=-\dfrac{27}{4}\\\\a_5=a_4r\to a_5=-\dfrac{27}{4}\cdot\left(-\dfrac{3}{2}\right)=\dfrac{81}{8}$

3 0

4 years ago

8th grade word problem... Can someone please help if you don’t know then please don’t answer...

QveST [7]

Answer:

30 of each type sold.

Step-by-step explanation:

It would be 30 since the LCM of 10 and 3 is 30.

If you need further explanation, reply to this answer but that's about it.

8 0

3 years ago

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.​

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.