10x + 7y = -3
5x - y = 3

Answers

Answer 1
If this is a system of equations then:
Multiply 5x-y=3 by -2
=> -10x+2y=-6
Now you sum the equations:
10x-10x+7y+2y=-3-6
=> 9y=-9
Then just divide by 9: y=-1
Now to get x, choose one of the equations and use the value we got from y:
5x-(-1)=3 => 5x+1=3 => 5x=3-1
=> 5x=2
=> x=2/5

(x,y)=(2/5, -1)

Related Questions

WORTH 30 POINTS ILL MARK BRAINLIEST
for the equation y=x^2+6x+4
a) use completing the square to change the following equation to graphing (vertex) form
include steps

Answers

Step-by-step explanation:

[tex]y = {x}^{2} + 6x + 4[/tex]

[tex]y - 4 = {x}^{2} + 6x[/tex]

[tex]y - 4 + 9 = {x}^{2} + 6x + 9[/tex]

[tex]y + 5 = (x + 3) {}^{2} [/tex]

[tex]y = (x + 3) {}^{2} - 5[/tex]

hlpppppppppppppppppppppppppppppp

Answers

Answer:

-9.661

Step-by-step explanation:

For this problem you simply substitute the give values into the equation

a=6.05

b=3.611

-6.05+(-3.611)= -9.661


Help pls and no links

Answers

Answer:

4x plus 1 I think I'm not 100 percent sure though.

Please help, I'm having a hard time with this ;-;

Answers

Answer:

A

Step-by-step explanation:

3 times steep means slope is 3 times

slope=4

new slope =3×4=12

translated 7 down means y intercept-7=1-7=-6

so new eq. is y=12x-6

Answer:

A

Step-by-step explanation:

So we know that the slope is 4, and we want to make it 3 times as steep, so that would be 12. The y-intercept is one and we want to move it down 7 units, 6-7= -1. So our final answer would be y= 12x-6!

if two congruent angles form supplementary, they are acute angles true or false

Answers

Answer:

false

Step-by-step explanation:

No, two acute angles cannot form a supplementary angle. By definition, acute angles are the angles that measure the angle greater than 0° and less than 90°. ... Example: 80° +60° = 140° which is not a supplementary angle. But, in the case, if we add more than two acute angles, we can get supplementary angles.

What would the numbers of microns be for this question?

Answers

Answer:

x = 24

Step-by-step explanation:

The ratio is x2

11 x 2 = 22

13 x 2 = 26

Therefore,

12 x 2 = 24

x = 24

Amy spent $90 at the store. She spent 1/3 of her money on food, 1/6 of her money on school supplies, and 1/9 of her money on soda. How much did she spend on school supplies?

Answers

Given:

Amy spent $90 at the store.

She spent [tex]\dfrac{1}{3}[/tex] of her money on food, [tex]\dfrac{1}{6}[/tex] of her money on school supplies, and [tex]\dfrac{1}{9}[/tex] of her money on soda.

To find:

How much did she spend on school supplies?

Solution:

According to the given information, Amy spend [tex]\dfrac{1}{6}[/tex] of her money on school supplies.

Amy spent $90 at the store. So,

Money spend on school supplies = [tex]\dfrac{1}{6}\times 90[/tex]

                                                        = [tex]15[/tex]

Therefore, Amy spend $15 on school supplies.

/fxa-pqxu-hzi. come here

Answers

What if I don’t wanna? What then?


b. Find m2VBC
D
B
20x + 5
9x-2
C
18

Answers

Answer:

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

b. Find m2VBC

D

B

20x + 5

9x-2

C

18

Step-by-step explanation:

A chocolate box made of cardboard is in the shape of a triangular prism. The prism's bases are isosceles triangles. The chocolate box has a decorative paper wrapper covering only its rectangular sides. A net of the chocolate box is shown below. How much decorative paper and cardboard are needed for the chocolate box, to the nearest hundredth of a square inch? Decorative paper: 30.5 in2; cardboard: 37.4 in2 Decorative paper: 30.5 in2; cardboard: 33.95 in2 Decorative paper: 34.5 in2; cardboard: 37.95 in2 Decorative paper: 34.5 in2; cardboard: 41.4 in2

Answers

Answer:

triangular prism - Chegg

The Chocolate Box Has A Decorative Paper Wrapper Covering Only Its Rectangular Sides. A Net Of The Chocolate Box Is Shown Below 1.5 In 1.9 In 1.9 In 2.3 In 5 In 1.5 In How Much Decorative Paper And Cardboard .

Algebraic Method #2: Solving by substitution 2x + 8y = 20 y = 2​

Answers

2x+8y=20
2x+8•2=20
2x=20-16
2x=4
x=2
Check:
2•2+8•2=20
4+16=20
20=20
x=2 and y=2
Good luck.

what is the answer to 3x + 2 = -19?

Answers

Answer:

X = -7

Step-by-step explanation:

x=-7

Hope this Helps q(≧▽≦q)

Each gridline represents one mile. If Ryan drove from home to the soccer field and then from the soccer field to the library, traveling in a straight line to each destination, he would have traveled ___ miles by the time he reached the library.

Answers

Answer:

13 miles

Step-by-step explanation:

Given that he traveled in a straight line to each destination. Then,

i. distance from his home to soccer field = [tex]\sqrt{x^{2} + y^{2} }[/tex]

                                      = [tex]\sqrt{4^{2} + 3^{2}}[/tex]

                                      = [tex]\sqrt{16 + 9}[/tex]

                                      = [tex]\sqrt{25}[/tex]    = 5 miles

ii. The distance from soccer field to the library = 8 miles.

So that we can say that;

Ryan's total distance from home to the library = 5 + 8

                                                      = 13 miles

Thus, Ryan would have traveled 13 miles by the time he reached the library.

Drag numbers to the table so it shows a proportional relationship between x and y.

Answers

Sorry but you didn’t put a table but at least I can answer this a table can be shown by following the same rule by adding, subtracting, multiplication or division. Sorry for the inconvenience!

Answer

Sorry but you didn’t put a table but at least I can answer this a table can be shown by following the same rule by adding, subtracting, multiplication or division. yeah thats right

Step-by-step explanation:

cant not solve unless u explain

Area of a kite assistance

Answers

It’s 5.7ft
Explain: I’m smart

helpppp pleaseeee thank you

Answers

The answer is D. 100.6
i wiuld put D as the answer , good luck

please help me do it please

Answers

Answer:

ll

Step-by-step explanation:

bye

write the equation of the graph in slope intercept form​

Answers

Answer:

To write a slope-intercept equation from a graph, find the point where the graph crosses the y-axis, b, and the slope, m, and plug them into the equation y=mx+b.

Step-by-step explanation:

3

1. -6/2 + 4
2. 2/5 - 1
3. 0? i think
4. 1? i think

4 and 3 can be switched i am pretty sure if wrong

Just to need solve this asap
which value represents (A u B)



pls don't answer randomly for points

Answers

Answer: 55

Step-by-step explanation:

Given

Values are presented in the Venn diagram

No of left-handed students [tex]n(A)=25[/tex]

No of vegetarians students [tex]n(B)=45[/tex]

Students who are left-handed and vegetarian is given by [tex]n(A\cap B)=15[/tex]

[tex]n(A\cup B)[/tex] is given by [tex]n(A\cup B)=n(A)+n(B)-n(A\cap B)[/tex]

Put the values

[tex]n(A\cup B)=25+45-15\\n(A\cup B)=55[/tex]

PLS
HELP
ILL
GIVE
MORE
IF
ITS
RIGHT

Answers

Answer:

the area of the porch is 5 times larger

Step-by-step explanation:

Area of a rectangle = length x width

Original area = 15 x 6 = 90 square feet

length of width after it was enlarged 5 times = 5 x 6 = 30

New Area = 30 x 15 = 450 square feet

change in area = 450 / 90 = 5

Please answer and thank you

Answers

Step-by-step explanation:

hope this will help you have a good day!

Please help i will mark brainliest

Answers

Answer:

Step-by-step explanation:

2.5 is the answer

Rachel's car has a 12 gallon gas tank and
she uses about 0.5 gallons per day driving to
school. Write an equation describing the
number of gallons of gas, g, Rachel has in
her car and the number of days, d, she has
driven to school.


please help meeee

Answers

Answer:

g=dx

Or, if you'r wanting the solved equation..

12 = 0.5 x 24

Step-by-step explanation:

If she has 12 gallons in her tank and you look at what it's asking us to do, "..number of gallons of gas, g" pairs up with the 12 gallons while the 0.5 gallons used per day pairs with "...the number of days, d, she has driven to school."

Hope this helped!

PLEASE HELP I WILL MARK BRAINLIEST HAVE A GREAT DAY:)!!

Answers

Answer:

F) 6/5

Step-by-step explanation:

6 divided by 5 = 6/5

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

Ur answer is :-

F. [tex]6 \div 5[/tex]

the insurance premium of a new bus is Ghc 93.30 plus 15% of the insured value. what is the insurance premium of a bus whose insured value is Ghc 250.00?​

Answers

Step-by-step explanation:

[tex] \frac{15}{100} \times 250 = 37.50 + 93.30 = 130.80[/tex]

The Question is in the png

Answers

Answer:

$30.69

Step-by-step explanation:

The answer to your question is 30.39 just like the dude said up top :)

6th grade advanced / 7th grade khan acadamy​

Answers

The answer will be A

Answer:

Step-by-step explanation:

both  A and B are equivalent

PLEASE NO LINKS

What fraction is greater than 1/9, is less than 1/3, and has a denominator of 18?
find the common denominators.

Answers

Answer:

5/18

Step-by-step explanation:

Let the numerator be x.

1/9 < x/ 18 < 1/32/18 < x / 18 < 6/182 < x < 6x = {3, 4, 5}

Fractions that satisfy the condition:

3/18, 4/18, 5/18

The first two can be simplified further:

3/18 = 1/6, 4/18 = 2/9

The answer is 5/18

What is the correct value of x

Answers

Answer:

45°

Step-by-step explanation:

The triangle is right isosceles.

It is right as the side is the diameter of the circle.

It is isosceles as two sides marked as equal.

Acute angles are same and equal to:

90°/2 = 45°

Correct option is 45°

Answer:

<M=90°[inscribed angle on diameter is 90°]

<N=<L=[base angle of isosceles triangle]

now

<M+<l+<N=180°[sum of interior angle of traingle]

[2x-5]×2=180-90

4x-10=90

x=100/4=25

x=25

Gerardo uses an ice cream scoop that makes spherical scoops of ice cream with a diameter of 2.5 inches.

If Gerardo opens a new tub of chocolate ice cream and scoops 37 scoops of chocolate ice cream, about how much chocolate ice cream, in cubic inches, is left in the tub?

Answers

Answer:

32.13 scoops left

Step-by-step explanation:

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