All categories

3 years ago

Solve by using elimination. Express your answer as an Ordered pair (-x +2y=3 3x-2y=7

Mathematics

1 answer:

MAVERICK [17]3 years ago

4 0

Answer:

(5,4)

Step-by-step explanation:

-x+2y=3

3x-2y=7

Add the like terms( 2y and -2y)(-x and 3x)(3 and 7) together. Do this vertically. 2y and -2y cancel eachother out.

2x=10

Divide both sides by 2

x=5

To find y, substitute x in for y in one of the equations

-5+2y=3

add 5 to both sides

2y=8

Divide both sides by 2

y=4

Check:

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

You might be interested in

I need to know what the answer is :)

ANEK [815]

3 ahhhhhhhhhhhhhhhhhhhhhhhhh

6 0

3 years ago

Please help please help please help

aleksandr82 [10.1K]

We need the articles firsttT

5 0

3 years ago

Gabriella had 6/8 of a whole pie left she gave Reuben 2/3 of the pie she had left how much of a whole pie did Reuben get

Cloud [144]

Answer:

$\frac{1}{2}$ of the whole pie

Step-by-step explanation:

The problem calls for a multiplication of fractions. In order to know how much pie Reuben got, we have to multiply $\frac{2}{3}$ by the pie Gabriella has, which is $\frac{6}{8}$ .

So: $\frac{2}{3}$ x $\frac{6}{8}$ = $\frac{12}{24}$

Let's reduce the answer to its lowest term by dividing both the numerator and the denominator by 12.

Numerator: 12÷12 = 1

Denominator: 24÷12 = 2

So, this makes Reuben's share being $\frac{1}{2}$ of the whole pie.

4 0

3 years ago

Choose the opposite integer for: 100 feet below the surface

Simora [160]

Answer:I think it’s 100

Step-by-step explanation:

It says that it’s 10p feet below the surface so that’s -100. It asks for the opposite of that so it’s 100

6 0

3 years ago

Read 2 more answers

Plz help me we are almost done

shusha [124]

Answer: 1. A 2. 1/5 3. 5/12 4. Not sure

Step-by-step explanation:

8 0

3 years ago