25. Save the simultaneous equations 2x-y=4;x+y=5​

Answers

Answer 1

Answer:

Step-by-step explanation:

2x-y=4 ..........(1)

x+y=5 ...........(2)

Add equation 1 and 2:

We get:

3x=9

x=9/3

x=3

Substitute value of x in (2):

x+y=5

3+y=5

y=5-3

y=2

(3,2)


Related Questions

Solve for f.
1≤2–f

89 points pls help

Answers

Answer:

f ≤ 1

Step-by-step explanation:

1) Subtract 2 from both sides.

1 - 2 ≤ - f

2) Simplify 1 - 2 to - 1.

- 1 ≤ - f

3) Multiply both sides by - 1.

1 ≥ f

4) Switch Sides.

f ≤ 1

[tex]\\ \sf\longmapsto 1\leqslant 2-f[/tex]

Take 2 to right

[tex]\\ \sf\longmapsto 1-2\leqslant -f[/tex]

[tex]\\ \sf\longmapsto -1\leqslant -f[/tex]

Multiply -1 on both sides

[tex]\\ \sf\longmapsto f\leqslant 1[/tex]

How to simplify a fraction with an exponent?

Answers

Answer:

Here you go

Step-by-step explanation:

it's all in the screenshot

What list shows these in order from least to greatest?

Square W: A= √325 in.2

Square X: A= 3π/.5 in.2

Square Y: A= 5.5π in.2

Square Z: A= 17.92 in.2


1. Z, Y, W, X
2. X, W, Z, Y
3. Y, Z, W, X
4. W, X, Y, Z

Answers

Answer:

4 i am not sure for this answer guess

Write 27% as a fraction.​

Answers

Answer:

27/100

Step-by-step explanation:

27%= 0.27= 27/100 which cannot be reduced

Answer:

27/100

Step-by-step explanation:

27% = 27/100

Serena needs ribbon
for an art project. The cost of the ribbon is 5 feet for $3.00.

Feet of Ribbon 1 5 10 15

Cost (in dollars) $3.00

a. Complete this ratio chart based on the information provided.

b. How many feet of ribbon can Serena buy for $12.00?

c. If Serena needs 17 feet of ribbon, how much will she pay? How do you know?

Answers

Answer:

(can't answer a since the ratio chart is incomprehensible through text)

b. 20 feet of ribbon for $12.00

12 / 3 = 4

5 x 4 = 20

c. 17 feet of ribbon for $10.20

find unit rate (cost / quantity)

3 / 5 = $0.60 per feet

0.60 x 17 = 10.2

Can someone help? (NO LINKS!)
Thank You!

Answers

Answer:

the answer is C

Step-by-step explanation:

that's what it is equivalent to

If the area of rectangle is x^2+5x+6, what expressions represent the length and width of the rectangle?

Answers

Answer:

length = x + 3

width = x + 2

Step-by-step explanation:

Hope it helps:)

Tim bought 3.6 pounds of flour for a cake and paid $8.50. What was the cost per pound?

Answers

Answer:

$2.36

Step-by-step explanation:

To find the price per pound is super easy. Just divide the price by the given pounds:

8.50/3.6=2.361=$2.36

Hope This Helps!

Need some help for Exponents.




1) Five squared

2) Eight to the 5th power

3) Nine cubed

4) 2 x 2 x 2 x 2

5) 7 x 7 x 7 x 7 x 7 x 7

6) 2.3 x 2.3

Find the value of each of the following:

7) 54

8) 132

9) (1.2)2

10) 180

11) 10002

12) 72 x 70

Critical Thinking Applications

13) Mali bought a new car. She drove 63 miles the first month and 64 miles the second month. How much further did she drive the second month? Explain each step.

14) Create an application problem similar to the one above. Solve your problem. Explain each step.

15) In your own words, write three or four sentences explaining what exponents are and how they are used in math.

16) Create and solve 5 problems using exponents.

Answers

Answer:

1) 25

2) 32,768

3) 729

4) 16 or 2^4

5) 117,649 or 7^6

6) 5.29 or 2.3^2

Not sure what 7-12 mean

13) 1 mile 64-63=1

14) Mali bought a new car. She drove 63 miles the first month and 100 the second month. How much further did she drive the second month? Explain each step. 37 miles 100-63=37

15) An exponet is a number raised to a power, which means that number times itself that many times. It is used because it's alot easier to go 7^6 than 7x7x7x7x7x7.

16) 8^5= 32,768  6^6= 46,656  5^7= 78,125  5^5= 3,125  4^10= 1,048,576

Step-by-step explanation:

¿Cuál es el recíproco de 3 3/7​

Answers

Answer:

[tex]3 \frac{3}{7} \\ = \frac{24}{7} \\ [/tex]

[tex]The \: reciprocal \: of \: \frac{24}{7} = \frac{7}{21} .[/tex]

2 over 3 take 1 over 2

Answers

Answer:

-1/6

Step-by-step explanation:

(2/3-1)/2

(-1/3)/2

-1/6

please help! thanks!

Answers

Yes, it is.
2(3) - 3(2) = 0
2(3) + 2 = 8

Can someone please help will mark brainliest.

Answers

Answer:

3 square miles

Step-by-step explanation:

Rusty's hair grows at the rate of 1 inch per month.
4
How many months will it take Rusty's hair to grow 5 inch?
5
8
Explain your answer using words, and show your work using division of fractions.

Answers

Answer:=> 10 months

Given :

Step-by-step explanation:

Given :

1 / 4 inches = 1 month

Find :

5 / 8 inches = ? months

According to the question :

1 month = 1 / 4 inches

5 / 8 inches = ' x ' months

=> ( 5 / 8 ) / ( 1 / 4 ) = x

=> ( 5 / 8 ) × ( 4 / 1 ) = x

=> ( 5 × 2 ) / 1 = x

=> 10 / 1 = x

=> x = 10.

So, it takes 10 months.

Answer:

it would be 5 months for his hair to grow 5 inches.

Step-by-step explanation:

well, if his hair grows 1 inch per month, and it take 5 months for his hair to grow.

so multiple 1 times 5 and you get you answer

5(2x + 1) = 50
Help me plsss

Answers

Answer:

x=9

Step-by-step explanation:

shape it helps

byeeeeee

A corporation earned its profit of 2.5x10^4 for 1x10^3 days in a row. What was the corporation's total profit during this time?

Answers

Answer:

$2.6 x 10^4

Step-by-step explanation:

help algebra 2 look at all the pictures please multiple choice

Answers

Relation given:-

{(-2,5),(-1,3),(0,-1),(1,-3),(2,-5),(3,-7)}

Inverse

{(5,-2),(3,-1),(-1,0),(-3,1),(-5,2),(-7,3)}

#2

f(x)=2x-3

Let it be y

[tex]\\ \tt\hookrightarrow y=2x-3[/tex]

[tex]\\ \tt\hookrightarrow 2x=y+3[/tex]

[tex]\\ \tt\hookrightarrow x=y+3/2[/tex]

Write in terms of x

[tex]\\ \tt\hookrightarrow f^{-1}(x)=\dfrac{x+3}{2}[/tex]

-10-11x+24=3x how can i solve this type of thing and i need to solve for x

Answers


-10 - 11x +24=3x
-10 (-11x +11x) +24 =3x +11x
-10 +24=14x
14=14x
1=x
x=1




Six ounces of a nutrition shake provides 2 grams of protein. Will 24 ounces of the drink provide 10 grams of protein? Explain

Answers

Answer:

(Hope this helps can I pls have brainlist (crown)☺️)

Step-by-step explanation:

In pic

One of my grandmother's most vivid memories of Camp 3 was a riot between the Nisei and the Kibei. The Nisei and Kibei were Japanese Americans born in the United States, but they weren't all educated in America. The Nisei went to school in the United States, whereas the Kibei were mainly educated in Japan. Then they returned to the United States. In general, the Kibei opposed those Nisei who joined the U.S. Army to fight.

Answers

Answer:

Step-by-step explanation:

what is the question?

what is 5000000000000 divided by 11

Answers

Answer:
45.454.545,45454545

Answer:

45.454

Step-by-step explanation:

1A. Tính:
a) ( -14) + 5 + 17 + 14 b) 40 +13 + ( -25) + ( -13)
c) ( -5) + ( -146)+ ( -15) + 14 d) ( -2) + (-5) + 20 + (- 13)

Answers

Answer:

7868

Step-by-step explanation:

what i can do what can i do

Answers

Answer:

thanks for the points have a nice day

You can go outside and do active stuff or family activities like going to the mountains, watching a movie or talk about things or spend time caring for yourself

New Brunswick middle school had 1,250 students last year this year they had a 15% increase. how many students are in new Brunswick middle achool this year?​

Answers

Okay so 1250x0.15=187.5

1250+187.5=1437.5


1437.5 is your final answer

what are some different ways to write c=2.95g

Answers

You could write it as 0.00295kg, or 0.006503637 pounds. Depends on what your looking for.

a square lot has a side of 8 5/8 meters,what is the area of the lot?

Answers

34.5 meters or 69/2 meters

(6,1),(7,2),(8,3) what is the range

Answers

Answer:

the range is 1, 2, 3

Step-by-step explanation:

1 Analyze Alana used the table of values to find the slope of the graph for this function.
Analyze her work and explain why you do or don't agree with her.
x
х
N
4.
6
00
у
4.
5
6
7
m= 6-2 - or2
=

Answers

Step-by-step explanation:

From the table of values, it is clear that Alana chose the points (2,4) and (6,6). She also used this formula to find the slope:⤵⤵⤵

(sorry if it's a bit small btw)

[tex] \frac{y _{2} - y _{1} }{x _{2} - x _{1} } [/tex]

She plugged in her values like so:

[tex] \frac{6 - 2}{6 - 4} [/tex]

But, right away we can tell that she put the values in the wrong places, because the y-values are supposed to be on top while the x-values are supposed to be on the bottom. Yet in this case, you can see that the 2 is an x-value, meaning she put it on the top, and thus the slope is wrong.

The correct way would be if she switched them around, where the y-values are on top and the x-values are on the bottom. With this in mind, the slope would actually be 2/4 which if you simplify it, it would be 1/2.

This is essentially your answer, feel free to use some of my words, if need.

Hope this helps :)

HELPP LIKE ILL GIVE 25 PTS!

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Domain of f(x) ~

[tex] - 6 \leqslant x \leqslant - 1[/tex]

Range of f(x) ~

[tex] - 5 \leqslant x \leqslant - 3[/tex]

Domain of f(x): -6 ≤ x ≤ -1

Range of f(x): -5 ≤ x ≤ -3

Write an equation of the line that passes through each point with the given slope.
(9,-8), m=
4
book
y = -43 - 44.
y = 4x - 44
y = 40 - 27
y = 4.1 +44
Question 6
1 pts

Answers

Answer:

Step-by-step explanation:

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