Mathematics High School

Solve by elimination
x-2y=1
3х — 6y = 3

Answers

Answer 1

Answer:

Step-by-step explanation:

3(x-2y=1)

3x-6y=3

3x-6y = 3

3x-6y = 3

3x-6y = 3

-3x+6y=-3

0 = 0

x & y can be any value.

Related Questions

7 ⅓ ÷ 225 =
answer this question plz

Answers

Answer:

0.03259..

Step-by-step explanation:

On the main floor of the Kodak hall at Eastman theater the number of seats per row increases at a constant rate Steven counts 31 seats in row three and 37 seats in row six how many seats are there in route 20

Answers

Answer:

67

Step-by-step explanation:

no

Choose the item that does NOT have a measurable volume.
a dollar bill
air
a box of crackers
a water bottle

Answers

Answer:

Air

Step-by-step explanation:

You can't really measure air

Answer:

Air

Step-by-step explanation:

You cannot measure air because it is invisible.

Work out the size of angle x.
42°
Х
123°
​

Answers

Answer:

42+123+x=180

x=180-165

x=15 degrees

Step-by-step explanation:

Please help me I will give u points whenever u wanna only Percy answers pleaseee ❤️
And don’t forget about explain

Answers

Answer:

this point is 72 digri ok

The answer to this question is 72 I believe so

The ratio of cement to gravel in a road
surface is 3:17. Find the percent
of cement in the mixture.

Answers

3/20 x 100/1 = 15% is the amount of cement in the mixture

Marie's dad drives an SUV that uses 2.5 litres of fuel for every 20 km driven. He drives to work 20 km each way, 5 days a week. How much fuel does he use to get to work every week?

Answers

Answer: 12.5 litres

Step-by-step explanation:

The SUV takes 2.5 litres for every 20 km driven.

The trip to work is 20 km which means that going to work costs Marie's father 2.5 litres every day in fuel.

In a week, there are 5 working days.

The amount of fuel used per week is therefore:

= 2.5 * 5

= 12.5 litres

the Question is on the image

Answers

Probably is 64% I just think it’s is but I’m not sure

⚠️⚠️⚠️⚠️help⚠️⚠️⚠️⚠️​

Answers

I say it’s 2/3 I mean that line means it’s a negative but there’s no negative 2 attached to the line

PLEASE HELPP ME!!!!
It would be greatly appreciated :)

Answers

Answer:

The slope of the line is 2/3

Answer: 1.5

Step-by-step explanation:

I plugged it in STAT, but you can do rise over run, or use the formula, y2-y2/x2-x1

What does x equal please help

Answers

Answer: 5 1/2 (5.5)

Step-by-step explanation:

add 4 2/3 to 5/6

Original Price Percent of Discount Sale Price
$112 32%

Answers

Answer:

32 percent of 112 is 35.84. 112 -35.84=76.16

Step-by-step explanation:

Brainliest?

Answer:

35.84

Step-by-step explanation:

I used a online calculator

Help Please!!!!! (Look at picture

Answers

438, correct me if wrong but this is what it said
438! Aka person above me is correct and I trust PhotoMath!

Give the similarity ratio for the following figures (small to large).

Answers

Answer: I think the answer would be 1/6

Step-by-step explanation:

If you notice, all of the numbers on the left model are 1/6 less than the one on the left. I don't know what type of answer they are looking for but the one on the left is 1.6 smaller than the one on the right:)

can someone pls simplify this
[tex] \frac{105}{12} [/tex]
​

Answers

25/3..................

what divided by 3/7=7/15

Answers

Answer:

45/49

decimal form:

0.91836734

Step-by-step explanation:

1. The angle of depression from the top of the

school to the base of the flag pole in front of

the school is 50°. If the flag pole is 35 feet from

the base of the school, find the height of the

school.

Answers

Answer:

41.7feet

Step-by-step explanation:

From the question we are given the following

angle of depression = 50°

Distance of the pole from the base of the feet = 35feet (Adjacent)

Required

height of the school (opposite)

Using the SOH CAH TOA identity

Tan theta = opp/adj

Tan 50 = H/35

H = 35tan 50

H = 35(1.1918)

H = 41.7feet

Hence the height of the school is 41.7feet


How much Interest(in dollars) is earned by Investing $2200 at a simple interest rate of 8% for 12 years? Write the correct answer.

Answers

A = $4,312.00

I = A - P = $2,112.00

hey!

Equation:

A = P(1 + rt)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 8%/100 = 0.08 per year.

Solving our equation:

A = 2200(1 + (0.08 × 12)) = 4312

A = $4,312.00

The total amount accrued, principal plus interest, from simple interest on a principal of $2,200.00 at a rate of 8% per year for 12 years is $4,312.00.

-------------------------------------------------

have a good day! hope i helped in some way

PLEASE HELP DUE TODAY HELP ASAP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I think it’s the third

Answer:

it's the first one

Step-by-step explanation:

you'd get each output (y) when you subtract 4 from whatever x is

6) You are shooting the puck along the path
seen in the picture of the air hockey table.
Find the mZxº and the mzmº.

Answers

Answer:

m = 58°

x = 64°

Step-by-step explanation:

When a puck touches one side of the air hockey table,

All the angles formed are located at a point on a straight line.

Therefore, sum of angles formed is 180°.

m° + m° + 64° = 180°

2m + 64 = 180

2m = 180 - 64

2m = 116

m = 58°

m∠y = m = 58° [Alternate interior angles]

Similarly, on the other side of the table,

58° + y° + x° = 180°

58° + 58° + x° = 180°

x + 116° = 180°

x = 180 - 116

x = 64°

Choose the correct answer.

Between the years 1970 and 1976, what percentage change in the rate of exchange occurred in the German mark relative to the United States dollar (to the nearest percent)?
%

Answers

answer:

Between the years 1970 and 1976, what percentage change in the rate of exchange occurred in the German mark relative to the United States dollar (to the nearest percent)?

45 %

The percentage change in the rate of exchange occurred in the German mark relative to the United States dollar is 45%

How to determine the change in the rates?

From the chart (table), we have the following rates in Germany:

Rate in 1970 = 27.42Rate in 1976 = 39.74

The percentage change is then calculated using:

Percentage change= (Final - Initial)/Initial * 100%

This gives

Percentage change= (39.74 - 27.42)/27.42* 100%

Evaluate the quotient

Percentage change= 0.45* 100%

Evaluate the product

Percentage change= 45%

Hence, the percentage change in the rate of exchange occurred in the German mark relative to the United States dollar is 45%

Read more about percentage change at:

https://brainly.com/question/978738

Gavyn was thinking of a number. Gavyn doubles it, then adds 14 to get an answer of 17.2. What was the original number?

Answers

Answer:

Original number we'll call "x".

2x + 14 = 17.2

x = 1.6

Step-by-step explanation:

Answer:

Original number we'll call "x".

2x + 14 = 17.2

x = 1.6

Step-by-step explanation:

Learn

Which of the following expressions represents the solution to x – 3 > -4?

a. x > -7
b. x > -1
c. x < 12
d. x > 12

Answers

Step-by-step explanation:

x - 3 > -4

= x > -4+3

= x > -1 _ Answer

Part B
What percentage of Americans would you predict wear glasses?

Answers

Answer: 64%

75% of adults use some sort of vision correction. About 64% of them wear eyeglasses, and about 11% wear contact lenses, either exclusively, or with glasses. Over half of all women and about 42% of men wear glasses.

63.8% of Americans are predicted to wear glasses

How to determine the percentage?

The given parameters are:

Glasses = 638Sample size = 1000

The percentage of Americans that wear glasses is calculated as:

Percentage = Glasses/Sample size

This gives

Percentage = 638/1000

Evaluate the quotient

Percentage = 0.638

Express as percentage

Percentage = 63.8%

Hence, 63.8% of Americans would wear glasses

Read more about percentages at:

https://brainly.com/question/11360390

an object is traveling on a circle with a radius of 5 cm. if in 20 seconds a central angle of 1/3 radian is swept out, what is the angular speed of the object? what is the linear speed?

Answers

Gaga est un ☝ et une bonne nouvelle de mon temps à me dire je me demande pourquoi

On a snorkeling trip, Dave dove at least 7 times as deep as Amy did. If Dave dove below 35 feet below the oceans surface, what was the deepest that Amy dove?

Answers

Answer:

The deepest that Amy dove below the ocean's surface is 5 feet.

Step-by-step explanation:

Let the deepest that Amy dove below the ocean's surface be x.

7x = 35

x = 5 ft

Work out the surface area of this cylinder. Give your answer in terms of π.

Please help.
Don’t comment a random link or I will report you!!

Answers

Answer:

2010.62cm²

Step-by-step explanation:

The equation for the surface area of cylinder is:

A = 2πrh + 2πr²

Hope it was helpful

Is it possible for the rug to have an area of 71.25 square feet? If it is possible, give approximate dimensions of the rectangle and explain your work. If it is not possible, explain why not.

Answers

Answer:

Yes 2*35.625

Step-by-step explanation:

Just divide by two and now you have dimensions for a rug that has an area of 71.25

Yes, Is it possible for the rug to have an area of 71.25 square feet.

What is mean by Rectangle?

A rectangle is a two dimension figure with 4 sides, 4 corners and 4 right angles. The opposite sides of the rectangle are equal and parallel to each other.

We have to given that;

A rug weaver wants to create a large rectangular rug.

Now, From the figure;

Area (S) = (8 + x) (9 - x)

            = - x² + x + 72

            = - (x² - x + 1/4) + 1/4 + 72

           = - (x - 1/2)² + 72.25

Hence,

S (max) = 72.25 square feet

And, 72.25 > 71.25

Thus, Is it possible for the rug to have an area of 71.25 square feet.

Learn more about the rectangle visit:

https://brainly.com/question/2607596

#SPJ2

Complete question is shown in figure.

4.

Find the area of the shaded region.


A. 5x2 + 16x – 21

B. 7x2 + 28x + 27

C. 5x2 + 28x + 27

D. 5x2 + 28x + 21

Answers

Answer:

yay

Step-by-step explanation:

yayyayyayyayyayyyayyayayayyayaya

Answer:

D. 5x2 + 28x + 21

Step-by-step explanation:

First you want to find the area of the white rectangle

Then find the area of the beings rectangle

Then subtract beings minus white.

                                     Sorry it’s +21. The first answer in your list

                                      then thats correct

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

5x^2+28x+21 confirmed from Cortez himself

please help please!!!

Answers

I think the anwser is c -2 and 9

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