3 years ago

What is the solution to the system of equations below? 3x-2y=7 and -3x+5y=5

Mathematics

1 answer:

Zolol [24]3 years ago

8 0

Step-by-step explanation:

So you add one over the other

3x-2y=7

-3x+5y=5

3y=12

Then you divide 3 from both sides

(3y)/3=12/3

y=4

Then you substitute the y=4 in to the equation of your choice

3x-2(4)=7

3x-8=7

+8 +8

3x=15

x=5

You might be interested in

A man bought a beautiful horse and needed a paddock to keep it in. He decided on a square shaped area and used 30 poles on each

Aleks04 [339]

Answer:

120poles

Step-by-step explanation:

Given

Length of each poles of the paddock = 30

Since a square has 4 sides, the perimeter of the square shaped paddock is what we are to look for.

Perimeter of a square = 4L

L is the length of each side of the paddock

Perimeter = 4(30)

Perimeter of the square = 120

Hence he used 120poles for the paddock

8 0

3 years ago

How do I work through this to find Y?

Daniel [21]

Answer:

22?

I'm not sure but i will corect it if i'm wrong

7 0

3 years ago

9liters how many in milliliters

Sergio [31]

If 1 litre has 1000 milliliters

Then 9 liters will have (9 x 1000)

So 9000 millileters

3 0

4 years ago

How many chemical changes occurred in this scenario? one two three four

antoniya [11.8K]

Answer:

Only one :p

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

I rlly thought I understood this but I really don't PLEASE help. You are planning a pizza party for your class. There are 42 stu

Pie

There are 42 students and 30 slices of pizza so 42-30=12 so you would need another extra large pizza to feed the whole class.
Hope this helps!

7 0

2 years ago