PLZ HELP I NEED THISS

I need help with this!

Alex17521 [72]

Answer:

(-7, -8)

Step-by-step explanation:

To start we have to isolate a variable to get an equation for it.

Let's get an equation for x from the first equation:

x - 2y = 9

x = 2y + 9

Now that we know what x is in terms of y, lets plug it into our second equation:

3(2y + 9) - 5y = 19

6y + 27 - 5y = 19

y + 27 = 19

y = -8

Now that we know what y equals, let's plug it into our first equation and solve for x:

x - 2(-8) = 9

x + 16 = 9

x = -7

Now that we have x and y, we make our ordered pair, in terms of (x, y):

(-7, -8)

Hope this helps!

8 0

3 years ago

To pass a course with a C grade, a student must have an average of 70 or greater. A student's grades on three tests are 69, 77 a

Genrish500 [490]

Answer:

Grade≥69(at least 69)

Step-by-step explanation:

(77+69+65+x)/4=70

x=69

so he must get 69 or more

3 0

4 years ago

Read 2 more answers

Simplify (5 + 5)squared - 17-3

ki77a [65]

(5+5)²-17-3
(25)²-17-3
625-17-3
605

3 0

4 years ago

Mary Sue was a dedicated company employee. She worked for the same company for 32 years

aev [14]

L,M,N are midpoints altitude to ac

6 0

3 years ago

If y =10 and d=5 <br> Then y+d =

GalinKa [24]

Plug in 10 for y, and 5 for d

10 + 5 = 15

15 is your answer

hope this helps

8 0

3 years ago

Read 2 more answers