Mathematics High School

x + y = 2, -2x + 4x = 2
System of Equations

Answers

Answer 1

Answer:

[tex] - 2x + 4x = 2 \\ 2x = 2 \\ x = 1 \\ \\ 1 + y = 2 \\ y = 1[/tex]

Answer 2

Answer:

[tex]x=1\\y=1[/tex]

Step-by-step explanation:

Solve by substitution:

[tex]x+y=2\\-2x+4x=2[/tex]

[tex]2x=2;x+y=2[/tex]

Solve [tex]2x+2[/tex] for x:

[tex]2x=2[/tex]

[tex]x=2/2[/tex]

[tex]x=1[/tex]

Substitute 1 for x in [tex]x+y=2[/tex]

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

[tex]1+y=2[/tex]

[tex]y=2-1[/tex]

[tex]y=1[/tex]

[tex]x=1[/tex] & [tex]y=1[/tex]

hope this helps...

Related Questions

Write an answer solve an equation to solve each problem. the sum of three consecutive integers is 63. Find the integers. If the smallest integer is x, the equation will be.

Answers

Answer:

[tex]\text{Integers: }20,\:21,\text{and }22,\\\\\text{Equation: }x+(x+1)+(x+2)=63[/tex]

Step-by-step explanation:

Consecutive integers are defined by integers that follow each other. Therefore, we can set up the following equation:

Let [tex]x[/tex] be the smallest integer, as denoted in the question.

[tex]x+(x+1)+(x+2)=63,\\x+x+1+x+2=63,\\3x+3=63,\\3x=60,\\x=20[/tex]

Therefore, the three integers are [tex]20,\:21,\text{and }22[/tex].

Determine the equation of the graph

Answers

There is no graph here

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What is the area❓ No links or troll answers you’ll be reported

Answers

Answer:

Step-by-step explanation:

so you have 2 rectangles and you first need to find what the area is for the side opposite 25 which is 9 because the 2 9's are the same as the missing number.

now 16x9=144

and 9x9x9=729

725x25=18225

hope that helps

have a great day/night

19NBoli

Can someone please answer this

Answers

Answer:

[tex] {7}^{3} (as \: a \: single \: power \: of \: 7)[/tex]

Step-by-step explanation:

Given

[tex] {7}^{4} \div 7[/tex]

Since,

[tex] {a}^{x} \div {a}^{y} = {a}^{x - y} [/tex]

Hence,

[tex] = {7}^{4 - 3} [/tex]

[tex] = {7}^{3} (ans)(as \: a \: single \: power \: of \: 7)[/tex]

what is 42 + 40 x 5 (3 +8) x 25

Answers

Answer:

55042

Step-by-step explanation:

Answer:

55042

Step-by-step explanation:

At Walmart, a $525 bicycle is marked, "Get a 30% discount." What is the sale
price of the bicycle?

Answers

Answer:

367.50

Step-by-step explanation:

First find the discount

525 * 30%

525 * .30

157.50

Subtract this from the price

525-175.50

367.50

This is the new price

Answer:

367.5

Step-by-step explanation:

30% means 0.30

1 - 0.30 = 0.70

525 x 0.70 = 367.5

Let f(x) =3x-3 and g(x) = 21
evaluate
(-25)(-1)​

Answers

use photo math , that will help a lot!!

Using the properties of equality to solve the equation -3x - 9 = -21, you would

add 9 and then divide by -3
add 9 and then multiply by -3
subtract 9 and then divide by -3
subtract 9 and then multiply by -3 ?

Answers

Add 9 and divide by -3

Calculate the distance between the points KL if L is located on the origin and K is 3 units to the left of y-axis and 5 units upwards from the x-axis.

Answers

Answer:

answer must be √34 in my opinion.

brett colors 25% percent of the total shapes on the paper he colors 6 shapes enetr the number of shapes on bretts paper


HELP QUICK PLS

Answers

Answer:

24 shapes

Step-by-step explanation:

Answer:

24 shapes I hope this helps :)

Step-by-step explanation:

7(-6 1/8) or 7 x -6 1/8=?? brainilist

Answers

Answer:

Step-by-step explanation:

[tex]7 \times -6\frac{1}{8} = 7 \times \frac{-49}{8} = -\frac{343}{8}[/tex]

Answer:

-343/8 or -42 7/8

Step-by-step explanation:

7(-49/8) = -343/8 or -42 7/8

Using the diagram below, what is m< S to the nearest degree?
A) 64 degrees
B) 26 degrees
C) 67 degrees
D) 23 degrees

Answers

Answer:

C

Step-by-step explanation:

tan S = opposite / adjacent

S = tan -1 ( 120 / 52) = 66.57 degree ≅ 67

Area = nm? 6 mm b b b= mm pleas
e help​

Answers

Answer:

what r u asking?

Step-by-step explanation:

Please help.
What is the area of triangle ABC?

Answers

Answer:

C

Step-by-step explanation:

Answer:C

Step-by-step explanation:

A car can drive 30 miles in 25 minutes. How many miles could it drive in 75 minutes?

Answers

90 miles

75/25= 3
so 3*30 = 90

Answer:

90

First, divide: 75/25=3

Last 3x 30= 90

or

  30

x 3

--------

90

What is the value of x?

Answers

Answer:

x = 12 degree

Step-by-step explanation:

3x + 19 + 5x = 115 degree (sum of two interior opposite angles are equal to the third side)

8x + 19 = 115

8x = 115 - 19

x = 96 /8

x = 12

Answer:

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE

Terry spends $49.00 on apples. Howard buys 12 apples. Each apple costs $7.00. How many apples did Terry buy?

Answers

Answer:

7

Step-by-step explanation:

49.00/7.00 = 7

Answer:

Terry bought 7 apples.

Step-by-step explanation:

7 times 7 equals 49, in which Terry spent 49 dollars on apples, and each apple costs 7 dollars, therefor Terry bought 7 apples.

if you had to make 1000 toys and one toy used 2 (AA) batteries. how many would you need?​

Answers

Answer:

2000 batteries

Step-by-step explanation:

1000*2=2000

2,000 batteries .. that how many you will need

Consider a function that describes how a particular car gas mileage depends on its speed. What would appropriate domain for this function?
A. 0 to 100 per hour
B. 0 to 50 miles per gallon
C. Times from 0 to 10 minutes
D. Times from -10 to 10 minutes

Answers

Answer:  A. 0 to 100 per hour

==================================================

Explanation:

The phrasing "Depends on its speed" tells us that the speed is the independent variable, and therefore it's the x variable.

The domain is the set of allowed x values of a function, or allowed inputs. In this case, it appears the car's max speed is 100 mph.

Answer:

0 to 100 miles per hour

Carly takes a taxi from her house to her friends. Their houses are 6km apart. The taxi driver charges a flat fee of $10 plus $0.25/km. This can be modeled using the equation: C=0.25+10, where X represents the distance travelled in km and C represents the cost in dollars. How much will the taxi ride cost?

Answers

Answer:

$11.50

Step-by-step explanation:

0.25 times 6= 1.5, plus 10= 11.50

what is the value of 2 X ?​

Answers

1/2 .. i think that

ILL SEND EXTRA POINTS JUST
PLEASE HELP

Answers

Answer: A = P + 0.2P

Step-by-step explanation:

r = 0.04, t = 5

Original equation:

A = P + Prt

A = P + P(0.04)(5)

A = P + P(0.2)

A 31-foot board is cut into two pieces so that three times the length of the longer piece is 4 times the length of the shorter piece. What is the length of the longer piece?

Answers

Answer:

675

Step-by-step explanation:

Hope this answer helps you :)

Have a great day

Mark brainliest

The length of the longer piece is 124/7.

What is algebra?

Algebra is a branch of mathematics dealing with symbols and the rules for manipulating those symbols.

let the two pieces be x(longer) and y (shorter)

So,

x+y=31

and, 3x=4y

3x-4y=0

Solving both the equations:

x= 124/7 and y=93/7

Hence, the length of longer piece is 124/7.

Learn more about algebra here:

https://brainly.com/question/953809

#SPJ2

Please help me with this The picture shows the question and anwsers

Answers

Answer:

D is the answer

hope this helps

have a good day :)

Step-by-step explanation:

Translate this phrase into an algebraic expression,
17 increased by twice a number. Use a variable n to represent the unknown number.

Please help and thank you

Answers

Answer:

17+2n

Step-by-step explanation:

Somebody please help meee!!!!

Answers

Answer:

288.4

Step-by-step explanation:

v=pi r^2 H

Answer:

I think answer is 288.4 plz mark me brainlist

At the moment a certain medicine is injected, its concentration in the bloodstream is 120 milligrams per liter. From that moment forward, the medicine's concentration drops by 30% percent each hour. Write a function that gives the medicine's concentration in milligrams per liter, C(t), t hours after the medicine was injected. If anyone responds, thank you <3

Answers

Answer: [tex]C(t) = 120(1-0.30)^t[/tex]

Step-by-step explanation:

Exponential equation for decay:[tex]y= A(1-r)^t[/tex], where A = initial value, r= decay rate , t= time.

As per given, A = 120ml , r= 0.30

[tex]C(t) = 120(1-0.30)^t[/tex]

Hence, the required function that gives the medicine's concentration in milligrams per liter, C(t), t hours after the medicine was injected.

[tex]C(t) = 120(1-0.30)^t[/tex]

What multiplies to 18 and sums up to negative 19

Answers

Answer:

-18 and -1

Step-by-step explanation:

(-18) + (-1) = -19

(-18) × (-1) = 18

On the interval (r, 7), at which x-value is the average rate of change 56?
х
3
4
5
6
6
7
12
24
28
96
192
Reset
Next
21 Edmentum. All rights reserved.

Answers

I need point 4,7 so lemme get this pls and thx

What is the answer? :)

Answers

Answer:

7. the answer is 7

Step-by-step explanation:

the answer is 7

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