Mathematics High School

Solve the system of equation 3x+2y=26 and 2x+5y=32 by the method of elimination

Answers

Answer 1

Answer:

(-18,40)

(x,y)

by-step explanation:

-2(3x+2y=26)

3(2x+5y=32)

-6x-4y=-52

+ 6x+5y=92

1y/1=40/1

y=40

3x+2y=26

3x+2(40)=26

3x+80=26

-80 -80

3x/3=-54/3

x=-18

Related Questions

If Jake's height from birth (measured in inches) can be modeled by the Linear Regression Equations y = 4.3x +19, with x representing his age in years after birth What does this slope mean in the context of the problem

Answers

His height. To explain, if he was a newborn his age, x, would be 0. That can be modeled by y=4.3(0)+19 and so y would equal 19. He was 19 inches as a newborn. When he turned 1, x changed to 1. This can be shown by y=4.3(1)+19 where his height, y, is now 23.3 inches. The 19 stays constant because he was 19 inches as a newborn and every year that he grows older he grows 4.3 inches. Hope this helps!

PLEASE HELP IVE BEEN STUCK ON THIS FOR SO LONG! ILL GIVE BRAINLIEST HELP ASAP PLEASE

Answers

Answer:

It would be A

Step-by-step explanation:

If you are minusing by 5 in the equation then that means that they graph has gone down by 5 units not up. and since 4x and is positive and -2x is negative the graph would flip over the years axis

Can you guys please help me with these 3 problems I’m struggling.

Answers

Answer:

Question 1: 6

Question 2: 15

Sorry I dont know the last one but the other ones are correct

Step-by-step explanation:

create an equation to match my polynomial

Answers

(10,-10) i think that’s what it would be

a) Which of the shapes is a heptagon?
b)Which of the shapes is a septagon?

c)
Which of the shapes is an nonagon?

Answers

Answer:a) Which of the shapes is a heptagon?

Step-by-step explanation:a) Which of the shapes is a heptagon?

A man wants to determine the height of a light house. He measured
the angle at A and found that tan A = 3/4. What is the height of the
light house if A is 40 m from the base ?

Answers

Answer:

Step-by-step explanation:

height/A = tanA

height/40 = 3/4

height = 30 meters

The island has 600 bikes and 900 people. What is the bike to person ratio

Answers

Answer:

2:3 (2 bikes for every 3 people)

Step-by-step explanation:

hope this helps

4.25m + 7 + 6.75m - 11 =

Answers

Answer: 7

Step-by-step explanation:

4.25+6.75=11

11+7=18

18-11=7

Answer:

11m-4

Step-by-step explanation:

Add 4.25m and 6.75m= 11m

7+-11= -4

Find the sum of the Arithmetic Series on the picture.

Answers

Answer:

Step-by-step explanation:

The sum of the sequence is the average of first and last terms times the number of terms.

(3n+4) for 3rd and 7th terms and the number of terms is 7-3+1=5 so

(13+25)5/2

38(5/2)

19(5)

95

When taking notes from a book, story, or other selection the source should be?
A. simple
B. dependable
C. easy to copy

Answers

Answer:

b

Step-by-step explanation:

Answer:

B. dependable

Step-by-step explanation:

well good luck

Can someone please give me the answer to this please:(

I will give the first person who answer it correct a brainliest

I need the answer ASAP!!!!!!!!

Answers

You didn't ask a question or put a picture on this

which system of equations graphed below has a solution of (2,1)

Answers

Answer:

Sorry to say this... but neither of them have a solution of (2,1)

Step-by-step explanation:

The top one has a solution of (-2,-1). The one on the bottom has a solution of (-2,1). So... I'm not sure how this can help... but yeah...

I paid $42 for six hot chocolate bombs what is the unit rate price for one item

Answers

Answer:

$7

Step-by-step explanation:

Please help me. .....

Answers

Answer:

24 pounds

Step-by-step explanation:

Step 1: Find out how many pens he bought

12 pens per pack

Charles bought 60 packs

60 packs x 12 pens = 720 pens

Step 2: Find out how much Charles spent

2.80 per pack

Charles bought 60 packs

60 x 2.80 = 168 pounds

Step 3: Find out how many pens Charles sold

Charles sold 2/3 of his pens

2/3 x 720 = 480

Step 4: Find out how manypens he sold

Charles sold the pens for 40p

40p x 480 = 19200p

Step 5: Convert pences to pounds

19200p = 192 pounds

Step 6: Find the profit

192 - 168 = 24 pounds

Step 7: Therefore statement

Therefore he mad 24 pounds of profit

Solve using substitution.
y = -9x - 10
y = -2x + 4

Answers

Answer:

1.444444444444444444? I tried

Answer:

X= -2

Y= 8

im not sure if thats the way u needed

what is a decimal that is equivalent to the fraction 93/100

Answers

decimal equivalent of fraction 93/100 is 0.93

Answer=0.93 :)))))())))

Please Help ASAP I’m confused

Answers

c maybe i'm not sure

Can Someone help me to answer the question

Answers

Answer: X = -4

Step-by-step explanation:

90 - 5x + 62 -2x = 180

152 - 7x = 180

-7x = 28

x = -4

Check your answer by pluging in the vaule of x

90 - 5(-4)

90 + 20 = 110

62 - 2(-4)

62 + 8 = 70

110 + 70 = 180

Checks out.

Answer: 110 degrees and 70 degrees

Step-by-step explanation:

These angles are same side (of the traversal line) interior (inside the parallel lines) angles. Same side interior angles sum to 180 degrees. Add the two angles together and set them equal to 180. (90-5x) + (62-2x) = 180

Combine like terms. 90+62= 152 and -5x + -2x = -7x rewrite the equation as 152 + -7x = 180

Subtract 152 from both sides of the equation.

-7x = 28. Now isolate x by dividing both sides by -7. X= -4. Now we can substitute -4 back into the original equations. 90 -5(-4) = 90 +20 = 110 and 62 - 2(-4) = 62 + 8 = 70

We can double check our work to see if these two indeed add up to 180. 110 + 70 = 180

Find the geometric mean between 4 and 6. (Always simplify the radical completely.)

Answers

Answer:

Use the formula to find the geometric mean.

√

4

⋅

6

Multiply

4

by

6

.

√

24

Rewrite

24

as

2

2

⋅

6

.

Tap for more steps...

√

2

2

⋅

6

Pull terms out from under the radical.

2

√

6

Approximate the result.

4.89897948

The geometric mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

4.9

Plz help me i just need the name..thankyou!

Answers

Answer:

You can try E, G, D, N, L, and F. I will help you if you have any questions on it, but I will give you a little hint that do the way I did. It will make it much more easy to understand it. Hope this helps, thank you :) !!

The cylinder shown here has a height of 7 cm and a radius of 4 cm

How many cubic centimeters of fluid can fill this cylinder?

Answers

Answer: 175.9 (1decimil place)

Step-by-step explanation: Volume of cylinder= πr2h

V= π(4)x2x7= 175.9291886 (175.9 1dp) cm cubed.

1/2(5x−8)=21 solve for x and brainliest

Answers

Answer:

x=10

Step-by-step explanation:

see picture for explanation

[tex] \sqrt{8} [/tex]

Answers

[tex] \sqrt{8} =2 \sqrt{2} [/tex]

Explanation :

[tex] \sqrt{8} [/tex]

[tex] = \sqrt{(4 \times 2)} [/tex]

[tex] = \sqrt{4} \times \sqrt{2} [/tex]

[tex] = 2 \sqrt{2} [/tex]

3( 5x+10x -2)=
I NEED HELP

Answers

Answer:

45x-6

Step-by-step explanation:

math

way

Answer:45x-6

Step by step answer:

3(5x+10x-2)

3•5x=15x

3•10x=30x

3•-2=-6

15x+30x=45x

So then just put the -6 after 45x

45x-6

I need this answer ASAP

Answers

Answer:

B) 40

Step-by-step explanation:

2:10 2 out of 10

40:200 40 out of 200

A car travels 30 1/5 miles in 2/3 of an hour.What is the average speed in miles per hour of the car

[tex]Your answer=[/tex]

Answers

I dont know? You can maybe ask somone on branly

Answer:

The speed of car is 45.3 miles per hour.

Please Help ASAP I’m confused

Answers

Answer:

D. not necessarily congruent

I got it right

actually thats wrong bc my teacher did it with us but i really dont know the answer

Answers

Answer:

???

Step-by-step explanation:

darn
do u have the question lololol

What is an equation in point-slope form of the line that passes through the point (6,-2) and has a slope of 3?

Answers

Answer:

y+2=3(x-6)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-2)=3(x-6)

y+2=3(x-6)

A sign along the road has these measurements. What is the area of the sign? 35 and 20

Answers

Answer: 700

Step-by-step explanation:

35 x 20 = 700

Answer:

350

Step-by-step explanation:

b

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