Mathematics High School

x-3y=7
2х-6у=12
Solve the following systems

Answers

Answer 1

Answer:

Step-by-step explanation:

this system doesnt have any solutions

if you multiply the first equation by 2 you will get

2x-6y=14

second equation is

2x-6y=12

the result will -12=14

no solutions

Related Questions

Find the length of the hypotenuse, c in this triangle

Answers

C=5

4^2+3^2=C^2
16+9=C^2
25=C^2
Find the square root of 25 and C^2
5=C

Answer:

c = 5cm

Step-by-step explanation:

a^2 + b^2 = c^2

4^2 + 3^2 = c^2

16 + 9 = c^2

25 = c^2

do the square root of 25 and c to solve for c

the square root of c^2 is c

therefore, c= 5cm

In ASTU, S = 3.8 inches, t = 9.8 inches and u=9.6 inches. Find the measure of ZU to
the nearest 10th of a degree.

Answers

Answer: 75.8

Step-by-step explanation:

-7n=35
what does n equal and show your steps and ur solution plz thx

reply or answer asap

Answers

The answer is n=-5 my work is in the picture

Answer:

n = - 5

Step-by-step explanation:

The expression is given as ;

-7n = 35

Divide both sides by -7

-7n/-7 = 35/-7

n= -5

The value of n is -5

Find the measure of each interior angle.

Answers

Answer:

d) m<J = 115, m<K = 130, m<M = 50, m<N = 65

Step-by-step explanation:

The sum of interior angles in this rectangle is equal to 360

if we add all the given angles 7x + 10 = 360 subtract 10 from both sides

7x = 350 divide both sides by 7

x = 50 to find the measure of each angle replace x with 50

Find Cos b in the triangle

Answers

Answer:

3/5

Step-by-step explanation:

SOHCAHTOA

Cos- adjacent/hypotenuse

adjacent side: 3

hypotenuse: 5

adj/hyp: 3/5

What is the value of (x)?​

Answers

Answer:

1

Step-by-step explanation:

Answer:

x=1

Step-by-step explanation:

bro 8.1 • 10-8 is greater than 9.2

Answers

Yep. Correct, I think-

Answer:

Your statement is true

Step-by-step explanation:

:|

A carpenter sands 1/2 of a dresser in 3/4 hour ,how long does it take the carpenter to sand 1 dresser

Answers

Answer:

1.5 hours = 1 hour 30 mins

Step-by-step explanation:

3/4 = 0.75

0.75 x 2 = 1.5

There are 15 students not going on the field trip. That is 6% of all
of the 6th graders, How many 6th graders are there?

Answers

Answer:

250

Step-by-step explanation:

15=6%

?=1%

15/6=2.5

2.5=1%

1%=1/100

2.5 x 100=

250


[tex]5x {}^{2} + 2x - 3 - px - p[/tex]

​

Answers

Answer:

5x² + 2x - 3 - px - p

= 5x² + 5x - 3x - 3 - p(x + 1)

= 5x(x + 1) - 3(x + 1) - p(x + 1)

= (x + 1)(5x - 3 - p)

What is the answer to this question?​

Answers

Answer:

Step-by-step explanation:

X=-6

Step-by-step explanation:

x= -6

......................

I am struggling with math right now this will help out a lot

Answers

Answer:

A car bought every 10 seconds? If that is even true

Step-by-step explanation:

Allie bought some DVDs for $14.99 each. Which expression below represents Allie’s cost for d DVDs? A. 14.99 + d B. 14.99 + 14.99d C. 14.99 ÷ d D. 14.99d

Answers

Answer:

D. 14.99d

Step-by-step explanation:

d represents the number of DVD's she purchased, and 14.99 was the cost for each DVD. Answer D is multiplying the variable d and the coefficient 14.99. When multiplying variables, there is no need to place a multiplication sign.

Answer:

C. 14.99 divided by d

Step-by-step explanation:

the answer is c because you don't know how many DVDs he bought so by dividing the answer you can then know the price of each DVD they bought.

DO THESE ON A PIECE OF PAPER! PLEASE HELP! QUICK!!DO ALL OF THEM!!!

Answers

Answer:

i cant sseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Step-by-step explanation:

the picture

Answer:

Step-by-step explanation:

It will be a little slanted so i am sorry.


Anyone know the correct answer?!

Answers

Answer: Lower-right corner  [tex]3^7 \times \frac{1}{3^4}[/tex]

Explanation:

We use the rule that

[tex]a^{-b} = \frac{1}{a^b}[/tex]

The negative exponent tells us to apply the reciprocal if we want the exponent to be positive.

In this case, a = 3 and b = 4

So,

[tex]a^{-b} = \frac{1}{a^b}\\\\3^{-4} = \frac{1}{3^4}[/tex]

which is why overall,

[tex]3^7\times 3^{-4} = 3^7 \times \frac{1}{3^4}[/tex]

Your doctor told you to eat 25 25 grams of fiber each day. You had 4 4 grams of fiber for breakfast. What percent of the 25 25 grams of fiber have you eaten so far?

Answers

Answer: 16%

Step-by-step explanation:

Grams of fiber recommended by doctor = 25 grams

Grams of fiber had for breakfast = 4

Percentage of gram ate = Grams had for breakfast / Grams recommended by doctor × 100

= 4/25 × 100

= 4 × 4

= 16%

Answer: 16%

Step-by-step explanation:

DOES ANYONE KNOW WHAT THE CORRDINTS ARE??!!

Answers

Answer:

-7 and -5

Step-by-step explanation:

It is where the parabola intercepts the x axis which is -7 and -5

Answer:
(-7,-5)
Yeah that’s what I think

I'm confused on this, so please help for 10 points.

Answers

Answer:

third one

Step-by-step explanation:

Answer: it would be the third option, (2/5)^4

Step-by-step explanation:

sure thing! so, when all of those fractions in parenthesis, it means they are all going to be multiplied. and, this gets easy! that third option means that all of them are getting multiplied 4 times, which is exactly what the original problem means. hope this helps!

Find the ratio (red to blue) of the perimeters of the similar triangles. Write your answer in simplest form.

Answers

Answer:

I think the answer is 9/2

A box of a dozen fruit tarts costs $15. How much money does 1 fruit tart cost?

Answers

1.25

dozen = 12

15/12 = 1.25

1 dozen = 12 so 15/12 is 1.25

which means 1 fruit tart is $1.25

Good night everyone
Also
should I
A. Go to bed
B. clean my room
C. Cry



c. is looking like the best option right now

Answers

Answer:

A

Step-by-step explanation:

8 hours of sleep is healthy

Answer:

clean your room then go to bed. you will feel proud of yourself after you do

Solve 3-4/7 with steps pls

Answers

Since there are multiple steps, we would use PEMDAS. Since dividing comes before subtracting, we would divide -4/7 first.
-4/7= −0.571428571428571
Since it’s a really big decimal, we’re going to round it to the nearest hundredth. That would get you -0.57
Next we would do 3-0.57
3-0.57= 2.43


So your answer would be 2.43

Hope it helps :)

Find the Circumference of the circle.
30 points for whoever answers this

Answers

Answer:

87.92

Step-by-step explanation:

(2)(3.14)=6.28

(6.28)(14)=87.92

2(pi)(r)

3x + 16 = 136

(3 seconds per item, plus 16 seconds to process payment, equals 136 seconds total.)

Subtract 16 from each side. Then divide both sides by 3.

Answers

Answer:

x = 40

Step-by-step explanation:

Help
Which one is for 1,2 ,and 3

Answers

x-5, y+9

because -5 then positive 5 up


If anyone willing to help, I'll be glad :)

Answers

Answer:

22

Step-by-step explanation:

Since its a parallelogram, opposite sides are congruent. Therefore:

BC = AD

a - 1.5 = 20.5

  +1.5     +1.5

a = 22

Answer:

a=22

Step-by-step explanation:

a-1. 5 =20. 5 ( opposite side of parallelogram are equal )

or, a=20. 5+1. 5

or, a=22

you can do it from another side too.

2a-20. 8 = a + 1. 2 ( opposite side of parallelogram are equal )

or, 2a - a = 1. 2 + 20. 8

or, a = 22

Hope it will help you ☺✌

this is the question ​

Answers

Answer:(1,1)

Step-by-step explanation:

Its asking where both linear and curve lines are being hit,

(fxg)(0)= 1,1

Which expressions are equal to 4y + 8 + 4y + 8?

Answers

Answer:

8y + 16

Step-by-step explanation:

Put the like variables together

complete the equation of the line through (-8,-2) and (-4,6). use exact numbers. We need to find out what y=?

Answers

Answer:y = 2x + 14

Step-by-step explanation:

First, you have to find the slope by using

In other words,

The slope is 2.

Then you plug the rest into point-slope form (you can use either of the points, I used the first one)

Remember that m is the slope.

Distribute the slope to the par

Step-by-step explanation: first you do this then that then this then that then this

A fish is 12 Meters below the surface of the ocean. what is it's evelation ​

Answers

A fish is 12 Meters below the surface of the ocean. What is the elevation it is -12
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