2x-y ;x=5,y=1 evaluating algebraic expressions

Answers

Answer 1

Answer:

9

Step-by-step explanation:

2(5)-(1)

10-1

9


Related Questions

3y-4x=9
standard to slope

Answers

3y - 4x = 9

3y = 4x + 9

y = 4/3x + 3

Answer:

the answer would be m=4/3


Cindy peeled 9 oranges every 24 minutes. At that rate, how many
would she peel in 32 minutes?

Answers

Answer:

12

Step-by-step explanation:

9/24 = 0.375 (how many peeled per minute)

0.375 x 32 = 12

Answer:

12 oranges

Step-by-step explanation:

Step 1:

9/24 = x/32        Equation

Step 2:

24x = 288        Multiply

Step 3:

x = 288 ÷ 24        Divide

Answer:

x = 12

Hope This Helps :)

Solve the simultaneous equations 3x- 4y =20 and 4x-2y = 25

Answers

Answer:

(6, - [tex]\frac{1}{2}[/tex] )

Step-by-step explanation:

Given the 2 equations

3x - 4y = 20 → (1)

4x - 2y = 25 → (2)

Multiplying (2) by - 2 and adding to (1) eliminates the y- term

- 8x + 4y = - 50 → (3)

Add (1) and (3) term by term to eliminate y

- 5x = - 30 ( divide both sides by - 5 )

x = 6

Substitute x = 6 into either of the 2 equations and evaluate for y

Substituting into (1)

3(6) - 4y = 20

18 - 4y = 20 ( subtract 18 from both sides )

- 4y = 2 ( divide both sides by - 4 )

y = [tex]\frac{2}{-4}[/tex] = - [tex]\frac{1}{2}[/tex]

Solution is (6, - [tex]\frac{1}{2}[/tex] )

The solution of the linear equations 3x - 4y = 20 and 4x - 2y = 25 will be (6, -0.50).

What is the solution to the equation?

The allocation of weights to the important variables that produce the calculation's optimum is referred to as a direct consequence.

The linear equations are given below.

3x - 4y = 20            ...1

4x - 2y = 25

8x - 4y = 50            ...2

Subtract equation 1 from equation 1, then we have

8x - 4y - 3x + 4y = 50 - 20

5x = 30

x = 6

The value of the variable 'y' will be given as,

3(6) - 4y = 20

18 - 4y = 20

4y = - 2

y = - 0.50

The solution of the linear equations 3x - 4y = 20 and 4x - 2y = 25 will be (6, -0.50).

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

14. Jorge's brother is 4 less than 3 times his age. The sum of their ages is
24. How old is Jorge's brother? *
A 6 years old
B. 12 years old
C. 7 years old
O D. 17 years old

Answers

D. 17 years olddddddddddd

17 years old!!! Easyyy

d(A-N)=Q solve for d

Answers

Answer: D = Q/A - N

Step-by-step explanation: u just divide both sides by A - N

0,4 Find the roots of the following quadratic equations
using the quadratic formula
1) 6a²x² - 7abx - 3b²=0, a is not equal to zero​

pls answer

Answers

Answer:

b = b2-4ac

= (-7ab)^2 -4 (6a^2)(-3b^2)

= 49a^2b^2 + 72a^2b^2

= 121a^2b^2

Now, x = (7ab +- root 121a^2b^2)÷2(6a²)

= (7ab +- 11ab ) ÷ 12a²

= ( 20ab)/12a² or 4ab/12a²

= 5/3ab or - 1/3ab .

So, these are its roots .

Step-by-step explanation:

Find (x+ 1) + (x + 1).

Answers

2x+2 that’s the answer hopefully I helped

The diagram below shows y as a functional of x, True or False?
A)True
B)False

Answers

Answer:

False

Step-by-step explanation:

A function can't have 2 y-intercepts so y is not a function of x

Answer:

I believe it is A.

step-by-step explanation:

Because on the grid it is the Y corrdinate and the X coordinate so I belive it id True.

Hope it helps!

Have a brainly day! :D

3(8 - 7) = 2(10 + 8)

Answers

Answer:

3(8-7)=2(10+8)

3(1)=2(18)

3= 36

I don't know what your instructions say but this is false. 3 is not equal to 36.

which equation represents a line that passes through 4 6) and is parallel to the line whose equation is 3x - 4y= 6
TIMED TEST WILL GIVE BRAINLIEST

Answers

Parallel means their slopes should equal to each other.

Thus we need to find the slope of the given line ,

Let's do it.....

[tex]3x - 4y = 6[/tex]

Subtract sides -3x

[tex] - 3x + 3x - 4y = - 3x + 6[/tex]

[tex] - 4y = - 3x + 6[/tex]

Divided sides by -4

[tex] \frac{ - 4}{ - 4}y = \frac{ - 3}{ - 4}x + \frac{6}{ - 4} \\ [/tex]

[tex]y = \frac{3}{4}x - \frac{3}{2} \\ [/tex]

This is the slope-intercept of the line.

We know that the coefficient of the x in slope-intercept form , is the slope of the line.

Thus the slope of the equation which we want is :

[tex]slope = \frac{3}{4} \\ [/tex]

_________________________________

We have following equation to find the point-slope form of the linear functions.

[tex]y - y(given \: point) = slope \times (x - x(g \: p) \: ) \\ [/tex]

Now just need to put the slope and the given point in the above equation.

[tex]y - 6 = \frac{3}{4} \times (x - 4) \\ [/tex]

Multiply sides by 4

[tex]4(y - 6) = 3(x - 4)[/tex]

[tex]4y - 24 = 3x - 12[/tex]

Plus sides 24

[tex]4y - 24 + 24 = 3x - 12 + 24[/tex]

[tex]4y = 3x + 12[/tex]

Subtract sides -3x

[tex]4y - 3x = 3x - 3x + 12[/tex]

[tex]4y - 3x = 12[/tex]

And we're done....♥️♥️♥️♥️♥️

Marshall knows that he burns 235 calories by walking for 30 minutes. This week, Marshall walked for 360 minutes. How many calories did Marshall burn by walking this week?

Answers

Answer:

2820 calories

Step-by-step explanation:

Since 30 can fit into 360, you can divide it.

360/30=12

12 is what you will multiply to the number of calories in 30 minutes.

235*12=2820

help please i only know it starts from "start"

Answers

Answer:

Step-by-step explanation:

Start

Translate up

Rotate counter clockwise

Translate diagonally down

Rotate clockwise

Translate left

Solution to Y=3x-1
look at picture

Answers

Just plug in the first value for x and see if you get the second value!

The answer is (2,5)

5 = 3 x 2 - 1.

5 = 6 -1

5 = 5

Answer:

picture guide person

Step-by-step explanation:

picture, then guide, and then person ⇔∑ω

11/12 - (1/3 + 1/4) =?

Answers

Answer:

I won't put a step by step since I converted the equations into decimals which I don't think will help you.

Step-by-step explanation:

0.33 or -0.33 depends on which you look at it.

Please I need help, anyone?

Answers

Answer:

i do not know

Step-by-step explanation:

what is 8 1 2 times 11

Answers

Answer:

[tex]8\frac{1}{2}*11=93\frac{1}{2}[/tex]

Step-by-step explanation:

Simplify the expression.

Solve the equation, justify
each step with an algebraic
property
-(x - 6) = 4

Answers

Answer:

x=2

Step-by-step explanation:

Step 1_  −(x−6)=4

              −x+6=4(Distribute)

               −x+6=4

Step 2_       −x+6−6=4−6

                   −x=−2

Step 3_       −x    equals   -2

                    −1                   -1

x=2

Hope this helps :)

Which is the equation of a line that has a slope of 4 and passes through point (1, 6)?
y = 4x – 2
y = 4x + 6
y = 4x + 2
y = 4x – 3

Answers

Answer:

y = 4x + 2

Step-by-step explanation:

Answer:

c on edge

Step-by-step explanation:

Cuantos casos de co vid hay en colombia 26 de octubre y cuantos casos y muertes reportan hoy?

Answers

Answer:

The country's capital is the region most affected by the pandemic. So far it has registered 308,645 positive cases. In recent weeks there has been an increase in cases, however, the Intensive Care Units continue to be controlled. Bogotá has been experiencing economic reactivation for several weeks, but they do not rule out some drastic measures in the future

Step-by-step explanation:

A sculptor is designing her new triangular masterpiece. In her scale​ drawing, the shortest side of the triangular piece to be made measures 9cm The longest side of the drawing measures 37cm The longest side of the actual triangular piece to be sculpted must be 16.3m long. How long will the shortest side of this piece​ be?

Answers

Answer:

396.5cm or 3.965m

Step-by-step explanation:

A sculptor is designing her new triangular masterpiece. In her scale​ drawing,

Scale Drawing

The shortest side = 9cm

The longest side = 37cm

Actual Drawing

The longest side of the actual triangular piece= 16.3m long.

We convert from meter to cm

1m = 100cm

16.3m =

Cross Multiply

= 16.3 m × 100cm/m

= 1630cm

How long will the shortest side of this piece​ be?

Let the shortest side be represented by x

9/37 = x/1630

Cross Multiply

37x = 9 × 1630

x = 9 × 1630/37

x = 396.48648649cm

≈ 396.5cm

Or converting to meter

= 396.5cm/100

= 3.965m

Miss Palmer weighs 155 pounds.If 1 pound is equal to .45kilograms, how much does miss Palmer weigh in kilograms?

Answers

Answer:

70.3068

explanation:

divide the mass value by 2.205

Answer:

69.75 kg

Step-by-step explanation:

1:0.45

155:x

x=155×0.45

x=69.75 kg

Miranda has borrowed $2000 from Bank of America to help pay for a flat screen TV. The $2000 was obtained at a rate of 5% for a period of 36 months. How much will she have paid for the TV after the 36 months?

Answers

Answer:

u get 300

Step-by-step explanation:

so what ur looking for is the "I" and first we covert 36 months in 3 years the do this set up 2000(0.05)3

Find the slope of the given linear function shown in the graph?

Answers

Answer:

-2

Step-by-step explanation:

Pick a point the count down 2 and right 1 to the next point

Since it goes down and to the right its negative

Answer:

-2

Step-by-step explanation:

Rise over run. It went down which means it's a negative. Then it went right (run).

plzz need help
help a fellow brainly

Answers

Step-by-step explanation:

b= -2A-a

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

h

The third option is right

HAVE A GOOD DAY!

Answer:

its the third one

Step-by-step explanation:

A bird leaves its nest and travels 10 miles per hour downwind for 3 hours. On the return trip, the bird travels 2 miles per hour slower and has 4 miles
left after 2 hours.
How long does the entire trip take?

Answers

Answer:

5 hours

Step-by-step explanation:

10-2=8 now add the hours

12 Which numbers are irrational? Choose all that apply.
A √ 26
B 5.87
C √ 144
D 2.161161116...
E 2/3

Answers

option a and option d

There are some numbers missing in the arithmetic sequence. 2, ___, ____, ____, ___,___, 20
a) Find the common difference


b) Find missing terms

Answers

Common difference is 3 the missing terms are 5,8,11,14,17

is square root 1/9 a rational number? Explain

Answers

Yes, a rational number is a number that can be expressed as a ratio of two integer numbers.

Write the word sentence as an equation. Then solve.

10 more than a number c is 3.

Answers

Answer:

10+c=3

Step-by-step explanation:

to solve this you would then subtract 10 from both sides, to get c by itself.

3-10= -7

Your answer would be -7 and the equation would be 10+c=3.

what mistake did they make? ​

Answers

Answer:

this is not a good angle cant see it that well

Step-by-step explanation:

Answer:

the mistake is that the person added 2x by-4x which should've been -2x

Step-by-step explanation:

-4x+2x is basically saying 2-4 which is -2

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Will people feel better if they eat organic produce instead of conventionally grown produce?E. Are coffee drinkers worried about their heart disease risk?Construct Hypotheses and PredictionsA hypothesis is a plausible __________________ for a particular fact. The hypothesis needs to be ____________________ or ____________________ based on collected evidence. All studies must have at least one hypothesis. Part A:What Roosevelts overall purpose in his speech? Solve each equation and show all your work. 6x - 5 = 2x + 73z - 2 = 5z + 195x - 15 + 2x = 4x + 1235x + 2 = 7 if molly had 6.5 jars of honey how many does she have if she takes away 1.684 6th grade reading I mark as brainliest zoom in if needed Part BInvestigate the individuals that you described and write 3-5 sentences in English about their significance.Who are they?Where are they from?Why are they famous?Why did you choose them?I wrote about Lionel Messi, and Shakira. write answer in english pls! 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