Mathematics High School

PLEASE HELP!!! THIS IS TIMED!!! PLEASE HELP ASAP!! How many solutions does this system have?

2 x minus 3 y = 10. Negative 4 x + 6 y = negative 20.

one

two

an infinite number

no solution

Answers

Answer 1

Answer:

No solution

Step-by-step explanation:

The equations:

2x – 3y = 10 → equ(1)

–4x + 6y = 20 → equ(2)

Using elimination method, and solving with y, we have:

3( –4x + 6y = 20) → equ(3)

6( 2x – 3y = 10) → equ(4)

Opening the bracket, we have:

–12x + 18y = 60

+12x – 18y = 60

From the above, we can see that both x and y are now eliminated, thereby giving us: 0 = 120 which makes no sense to me as it looks incorrect.

Therefore, there is no solution to the given equation.

I hope this helps

Answer 2

Answer:

One

Step-by-step explanation:

Related Questions

The ratio of two number is 4:9.When 5 is subtracted from each of them,the new ratio becomes 3:8. Find the numbers.

Answers

Answer:

The numbers are 20 and 45

Step-by-step explanation:

Let the two numbers be a and b

The ratio of the two is 4:9

That means;

a/b = 4/9

9a = 4b •••••(i)

secondly;

Subtracting 5 from each gives a ratio of 3:8

(a-5)/(b-5) = 3/8

8(a-5) = 3(b-5)

8a - 40 = 3b - 15

3b - 15 + 40 = 8a

3b + 25 = 8a

a = (3b + 25)/8 •••(ii)

Insert this into 1

9(3b + 25)/8 = 4b

27b + 225 = 32b

32b - 27b = 225

5b = 225

b = 225/5

b = 45

From i;

9a = 4b

9a = 4 * 45

a = 4 * 45/9

a = 20

B is the midpoint of AC and AC=8r-20,and AB=3x-1
Find BC

Answers

Answer:

BC = 26

Step-by-step explanation:

since B is the midpoint of AC, then AB = BC

AC = 8x - 20 & AB = 3x - 1

AC = AB + BC or 2AB

8x - 20 = 2(3x - 1)

8x - 20 = 6x - 2

subtract 6x form each side

2x - 20 = -2

add 20 to each side

2x - 20 + 20 = -2 + 20

2x = 18

x = 9

BC = 3x - 1

BC = 27 - 1

BC = 26

AC = 52

The graph shows the number of each size T-shirt a store currently has in stock. Which statements are true?

Choose exactly two answers that are correct.

Question 3 options:

The ratio of large to small T-shirts is about 4 to 1.

There are more than 35 small and extra small T-shirts.

There are about twice as many large T-shirts as small T-shirts.

There are fewer than 100 T-shirts in all.

Answers

Answer:

medium, extra large

Step-by-step explanation:

BRAINLIEST PLEASE

there are fewer then 100 t shirts
the ration of large to small tshirts is about 4 to 1
they are both correct




hi guys













i need help only 19​

Answers

y = 2/3x + 11/3

slope: (y2-y1)/(x2-x1) = (5-3)/(2- -1) = 2/3

point intercept form: (y-y1) = m (x-x1)
(y-3) = 2/3 (x+1)

solve for y
y-3 = 2/3x + 2/3
y = 2/3x + 11/3

1-tan theta/1+tan theta = cos theta - sin theta/cos theta + sin theta​

Answers

Answer:

The answer is given in the pic Hope it will help :)

Please find attached herewith the solution of your question.

Hope it helps

What is the volume of this?

Answers

Answer:

1728 m³

Step-by-step explanation:

[tex]A_{triangle}[/tex] = [tex]\frac{7.2*4.8}{2}[/tex] = 172.8 m²

V = 172.8 × 10 = 1728 m³

Un alumno del bachillerato distribuye su tiempo durante un día de la manera siguiente: en aseo 1/10, para comida 1/15, para estudio 2/5 horas, para diversión 4.4 y para dormir el resto del día ¿cuánto tiempo durmió?

Answers

Answer:

i dont know spanish

Step-by-step explanation:

lol monke live forever

Please help?
(3×+7)+(6+9)

Answers

Answer:

3x+22

Step-by-step explanation:

This might help for future questions as well

Robert nixes yellow and blue paint in the ratio of three to two if he used 12 gallons of yellow paint how many gallons of blue paint would he use

Answers

Answer: 8 gallons of blue

Step-by-step explanation:

Robert mixes the paint in the ratio:

= 3 yellow : 2 blue

If there are 12 yellow used then direct proportion can be used:

3   :   2

12 :   x

Cross-multiplying will give:

3x = 24

x = 24 / 3

= 8 gallons of blue

What is the image of ( − 3 , − 5 ) after a reflection over the x-axis?

Answers

Answer:

(-3,5)

Step-by-step explanation:

What is the slope of the line that contains these points? xxx -4−4minus, 4 -3−3minus, 3 -2−2minus, 2 -1−1minus, 1 yyy 222 555 888 111111

Answers

Given:

The table of values is

x        y

-4      2

-3      5

-2       8

-1       11

To find:

The slope of the line that contains these points.

Solution:

From the given table consider any two point.

Let the line passes through the points (-4,2) and (-3,5). So, the equation of the line is

[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]

[tex]y-2=\dfrac{5-2}{-3-(-4)}(x-(-4))[/tex]

[tex]y-2=\dfrac{3}{-3+4}(x+4)[/tex]

[tex]y-2=\dfrac{3}{1}(x+4)[/tex]

Using distributive property, we get

[tex]y-2=3x+12[/tex]

[tex]y=3x+12+2[/tex]

[tex]y=3x+14[/tex]

Therefore, the required equation of line is [tex]y=3x+14[/tex].

Answer: The slope is 1/5.

Step-by-step explanation:

You can find the answer by subtracting 6-1, (5) and 0-1,(1), which shows you 1/5. (Explanation sucks, sorry)

:)

What is the quotient of 9−x^2 divided by 3x and x^2+6x+9 divided by 3x?

Answers

Answer:

44 rem

Step-by-step explanation:

Sorry i dont have an explanation

10 points
8. The ring system around Saturn has a diameter of 170,000 miles. Find
the circumference around the ring system, to the nearest whole number.
If Saturn diameter is 72,367 miles. What is the area of Saturn to the
nearest Whole number? *

Answers

Kfkfkkfkdkdkdkkd24.006

A sales representative for a hardware company receives $8,000 per year plus a 6% commission on total sales. During one year the sales representative's sales totaled $320,000. Find the representatives total earnings for this year

Answers

Answer:p5

65=8poi

Step-by-step explanation:

What is the value of the number? -(-6)?

Answers

The value is positive six

Answer:

6

Step-by-step explanation:

-(-6)=6

How many solutions does the system have?
You can use the interactive graph below to find the answer.
4x – 10y = –20
6x – 15y = -30

Answers

Answer:

Infinitely many solutions

Step-by-step explanation:

Answer:

infinitely many solutions

Step-by-step explanation:

cause khan academy said so

HELP I forgot how to do this (show work please)

Answers

The answer is 23[tex]\sqrt{x} \pi[/tex].

Sorry that I didn't explain and made it short my annual examination is going on but I really wanted to help you.

Please help explain. I’ve came up with 3 wrong answers

Answers

The answer is skdkdksjxsjdjsj hope this is what your looking for

Answer:

step 1. The volume of a cylinder (V) = (pi)R^2(h).

step 2. if the volume of a similar cylinder is 88ft^3 with R =2ft

step 3. then the cylinder with R = 5 would be (5/2)^2 bigger.

step 4. the volume of figure A is 88(5/2)^2

step 5. V = 88(5/2)^2 = 550ft^3.

A bakery used 35% more sugar this month than last month. If the
bakery used 360 kilograms of sugar last month, how much did it use this
month?

Answers

Answer:

486 kg

Step-by-step explanation:

(Calculator)

360 + 35%

=486

I hope it is correct

Write the equation of the line that passes through the points (-4,8) and (-2, -1).
Put your answěr in fully reduced point-slope form, unless it is a vertical or horizontal
line.PLEASEEE HELPPP MEE

Answers

Answer:

y=-9/2x-10

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-1-8)/(-2-(-4))

m=-9/(-2+4)

m=-9/2

y-y1=m(x-x1)

y-8=-9/2(x-(-4))

y-8=-9/2(x+4)

y=-9/2x-36/2+8

y=-9/2x-18+8

y=-9/2x-10

In the slope 3/7, the 7 indicates to

Answers

Rise over run, so the seven indicates a change in 7 spaces to the right.

Write an addition, subtraction, multiplication, and division problem that all equal -3.

Answers

Answer:

-5+2

3-6

3 x -1

-6 divided by 2

PLSSS HELPPP !!!At least how many square feet of canvas are needed to make one cover? (Use
A 44 ft.2
B 22 ft.2
C 770 ft. 2
D 154 ft.2

Answers

Answer:

154ft.2 witch is d

Step-by-step explanation:

i just know

THIS IS GEOMETRY I ONLY ahve 10 MINUTES PLEASE HELP THANK U

Answers

Answer:

i need a photo or an equation TvT

Step-by-step explanation:

TvT TvT TvT

There’s not question thought :/

Please answer this question now. Giving brainliest to anyone who answers

Answers

Line p is perpendicular to S and the equation is y=x +3 which is D

worth 30 points !!!!!

Answers

Answer:

a

Step-by-step explanation:

the line model shows 2 halfs of 4/10

The answer should be a

can someone help me find the area and perimeter please?​

Answers

Answer:

Step-by-step explanation:

Remember that the formula to get the area of a right triangle is base times height divided by 2, so to find the area:

5 x 12 = 60/2 = 30

Area of this triangle is 30.

To find the perimeter, add all the sides:

5 + 12 + 13 = 30.

Perimeter of this triangle is 30.

why is it difficult to find fossilized plants and animals in the same place

Answers

Answer:  because the conditions to generate a fossil for an animal is very different from the conditions required for a plant.

Step-by-step explanation:

it is D

Answer:

d

Step-by-step explanation:

i think thats right. hope this helps

Myra is planning to purchase a recliner that costs 1,490 .the installment plan offered at the furniture store requires a 12% down payment and 20 monthly payments of $71 each .

Answers

Answer:

what is the question?

Step-by-step explanation:

Answer:

okay

Step-by-step explanation:

but whats the question tho u gave us the info so whats the question

WILL MARK YOU BRAINLIEST ANSWER WHAT YOU CAN PLS

Answers

Answer:

1.

T mBAC = mB'A'C'

F 2mABC = mA'B'C'

F BC = 2B'C'

T 2XA = XA'

2

D'(-2/3; -1)

E'(-1;1)

F'(1;1)

G'(1;-1)

3

the centre is L(0;-2)

the scale factor is 4

length J'K' = 4JK

the measure of L is equal the measure of L'

the table:

K(4;2) 4 4 16 16 0+16 -2+16 K'(16;14)

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