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Lemur [1.5K]

4 years ago

a"> for x

Mathematics

1 answer:

denis-greek [22]4 years ago

5 0

X=(c-b) divided by a

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5x−y=3 −5x+2y=4 Which ordered pair satisfies the system of equations shown above?

ale4655 [162]

Answer:

$(2, 7)$

Step-by-step explanation:

We can solve this system of equations by using elimination.

In this case, we can eliminate x by adding the two equations:

$5x+(-5x)-y+2y=3+4\\5x-5x+y=7\\y=7$

Then, substitute 7 for y to solve for x:

$5x-y=3\\5x-7=3\\\text{Add 7 to both sides}\\5x=10\\\text{Divide both sides by 5}\\x=2$

Substitute both these values into the system to check our answer:

$5x-y=3\\5(2)-7=3\\10-7=3\\3=3\rightarrow \text{correct!}$

$-5x+2y=4\\-5(2)+2(7)=4\\-10+14=4\\4=4\rightarrow \text{correct!}$

Therefore the ordered pair is:

$(x, y)=(2, 7)$

6 0

2 years ago

Please solve all four questions!!1 brainliest and 25 pts

rodikova [14]

I can answer only 1st coz I have no idea about 2nd problem..

Here Hypotenuse is 5

$c{}^{2} = a {}^{2} + b {}^{2}$

a =x

b =4

c = 5

5 square =x square +4 square..

25 =x square+16

25 -16 =x square

9 =x square..

√9 = x

3 = x..

<h2>If this answer helps you plz mark as brainlist..</h2>

8 0

3 years ago

Read 2 more answers

Which step is it?? Please help me.

eduard

Answer:

Use PEMDAS so division would be the first step

Step-by-step explanation:

1)Parentheses

2)Exponents

3)Multiplication

4)Division

5)Addition

6)Subtraction

6 0

4 years ago

The animal shelter needs to split 6 1/2 pounds of dog food equally among the 13 dogs in the facility. How much dog food will eac

AveGali [126]

Answer:

1/2 pound for each dog.

Step-by-step explanation:

Don't get confused. There are only 2 numbers which will give 2 different answers: 2 and 1/2. Which one is correct?

You want the units to be pounds per dog or pounds/ number of dogs.

The numerator is 6.5

The denominator is dogs (13)

Food per dog = 6.5 / 13 = 1/2

3 0

3 years ago

Read 2 more answers

write the equations of the line passing through the point (2,4) and parallel to the line whose equation is y=x

anastassius [24]

Answer:

y = x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = x is in this form

with slope m = 1 and c = 0

• Parallel lines have equal slopes, thus

y = x + c ← is the partial equation of the parallel line

To find c substitute (2, 4) into the partial equation

4 = 2 + c ⇒ c = 4 - 2 = 2

y = x + 2 ← equation of parallel line

3 0

3 years ago