3 years ago

X + 5y =20 2x - 7y = 9

Mathematics

1 answer:

Anettt [7]3 years ago

5 0

Answer:

Step-by-step explanation:

<em> will multiply the first equation with -2</em>

-2x-10y=-40

i will add it now to the second equation

-2x-10y=-40

2x-7y=9

-17y=-31

y=31/17

and x=185/17

You might be interested in

What is the completely factored form of 6 x squared minus 13 x minus 5?

777dan777 [17]

Answer:

$(2x-5)(3x+1)$

Step-by-step explanation:

The given quadratic trinomial is $6x^2-13x-5$

Where a=6, b=-13 and c=-5

$ac=-30$

The factors of -30 that add up to -13 are -15,2

We split the middle term to get:

$6x^2+2x-15x-5$

Factor by grouping:

$2x(3x+1)-5(3x+1)$

These completely factors to:

$(2x-5)(3x+1)$

3 0

3 years ago

If a property sold for $350,000,what total commission would the seller pay at 6%?

ipn [44]

350000/100=x/6
100x=2100000
x=21000

Total commission will be $21000

8 0

3 years ago

PLEASE HELP THIS IS DUE BY 10 MINUTES

garri49 [273]

Answer:

Both 10 and 2

Step-by-step explanation:

Hope this helpsss

3 0

3 years ago

Please help me I need help!!!!!

Mashcka [7]

Answer:

I got 8.4

Step-by-step explanation:

I tried my best I did struggle I won't lie. Hope this helped.

6 0

3 years ago

How do you find the domain and range of a quadratic function?

elena-s [515]

Answer:

the domain is always all real numbers and you find the range by finding the vertex which is f(-b/2a)

Step-by-step explanation:

7 0

3 years ago