help again! algebra 1

Help Again! Algebra 1

Answers

Answer 1

Answer: maybe c?

Step-by-step explanation:

from eqn. 1

3x + 2y = 23

2y = 23 - 3x

y = 23/2 - 3/2x

sub into eqn. 2

1/2x - 4 = 23/2 - 3/2x

1/2x + 3/2x = 23/2 + 4/1

2x = 23/2 + 8/2

2x = 31/2

x = 31/4

sub into eqn. 1

31/4 + 2y = 23

2y = 23 - 31/4

2y = 92/4 - 31/4

2y = 61/4

y = 61/8 or 7 5/8  

ummm i got something wrong but try c?

Answer 2

Answer:

C . 31/4,-1/8

Step-by-step explanation:

1. sub the given value of y

into 3x + 2 (1/2x -4) 23

2. slove for x = 31/4

3.sub the given value of x into 1/2x - 4 =y

4. solve the equation for y

5. y = -1/8

6. ordered pair to (x,y) = 31/4,1,8


Related Questions

A train leaves at 17.22 and arrives at its destination at 18.14.
If the train travelled 56 km, what was it's average speed in km/h?
Give your answer rounded to 1 dp.

Answers

Answer:

48.5 km/h

Step-by-step explanation:

speed = distance/time

distance =56km

time = 1814h - 1722h

time = 52 min = 52/60h =13/15h

speed = 56*13/15

speed = 48.53

into 1dp= 48.5 km/h

Answer =

So first remember the formula:

Distance/Time= Speed.

Now you see how many minutes it is from 17:22 to 18:14.

17:22 > 18.14 = 52 minutes, 1 Hour = 60 minutes. Hence, 52/60.

Then you get your calculator and do, 56 km/ 52/60

So what I mean is basically 56 km *fraction line* 52 *another fraction line* and then 60 in your calculator. Then you will get a fraction then press SD in your calculator.

You should get 64.6153....

Now the final step is to round it to the 1st decimal place, so

64.6|153 after 64.6 is the first decimal place which is (1) and 1 is below 5 so it will not go up and therefore stay the same so, your Answer is: 64.6 km/h.

Hope it helped!

Also Guys I gave myself 1 rating lol by accident, and also the answer is right since I checked it with my seniors and teachers!

1
What are the basic tools of Euclidean geometry?

Answers

Answer:

The straightedge and the compass. The name is due to the fact that connecting points with segments, prolonging segments and drawing circles with a given center and a given radius are the basic geometric constructions described in the first three Euclidean postulates.

Step-by-step explanation:

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When viewed from the side, the frame of a ball-return net
angles with the ground.
forms a pair of supplementary
Find m/BCE and mZECD.

Answers

Answer:

BCE= 115    ECD=65

Step-by-step explanation:

(5x+10)+(3x+2)=180

8x+12=180

8x=168

x=21

5(21)+10=115

3(21)+2=65

Answer:

<BCE=115°

<ECD=65°

And their sum is 180°

Step-by-step explanation:

< BCE + <ECD =180° ( Being sum of supplementary angle which is formed in the given diagram is 180°)

(5x + 10)° + (3x + 2)°= 180°

5x + 10 + 3x + 2 = 180°

5x + 3x + 10 +2 = 180°

8x + 12= 180°

8x = 180°-12°

8x = 168

x= 168/8

x=21°

Now,

<BCE = 5x+10

= 5*21+10

=105+10

=115

<ECD

= 3x+2

= 3*21+2

=65

Bhavik bought 3 liters of milk and 5 loaves of bread for a total of $11 A month later, he bought 4 liters of milk and 4 loaves of bread at the same prices, for a total of $10 How much does a liter of milk cost, and how much does a loaf of bread cost?

Answers

Answer:

A liter of milk cost $0.75 and a loaf of bread cost $1.75

Step-by-step explanation:

Let the liters of milk by represented by m

Let the loaves of bread by represented by b

Bhavik bought 3 liters of milk and 5 loaves of bread for a total of $11

3m + 5b = 11...... Equation 1

A month later, he bought 4 liters of milk and 4 loaves of bread at the same prices, for a total of $10

4m + 4b = 10.... Equation 2

Combining the Equations

3m + 5b = 11...... Equation 1

4m + 4b = 10.... Equation 2

We solve using the Elimination method

Multiply Equation 1 by 4 and Equation 2 by 3 to eliminate m

12m + 20b = 44..... Equation 3

12m + 12b = 30....... Equation 4

Substract Equation 4 from Equation 3

8b = 14

b = 14/8

b = $1.75

Solving for m

3m + 5b = 11...... Equation 1

3m + 5($1.75) = 11

3m + $8.75 = $11

3m = $11 -$ 8.75

3m =$ 2.25

m =$ 2.25/3

m = $0.75

Therefore,

a liter of milk cost $0.75 and a loaf of bread cost $1.75

How can I obtain the graph of f(x) = -1/2(x + 2)^2 - 5 from the graph of g(x) = x^2? please show work

Answers

Answer:

read the full answer

Step-by-step explanation:

To find the transformation, compare the function to the parent function and check to see if there is a horizontal or vertical shift, reflection about the x-axis or y-axis, and if there is a vertical stretch.

Horizontal Shift: Right  2  Units

Vertical Shift: Up  5  Units

Reflection about the x-axis: None

Reflection about the y-axis: None

Vertical Compression or Stretch: Stretched

TO VIEW GRAPH TRY M-A-T-H-W-A-Y

Please help stick on this !!!!!

Answers

Answer:

a) The new ordered pairs are X' (-3, -7), Y' (-2, -10), Z' (-5, -2)

b) The new ordered pairs are X' (6, 9), Y' (7, 12), Z' (4, 4)

Step-by-step explanation:

If the point (x, y) reflected across the x-axis, then its image is (x, -y), which means to reflect a point across the x-axis, change the sign of its y-coordinateIf the point (x, y) translated h units to the right and k units up, then its image is (x + h, y + k), which means add its x-coordinate by h and add its y-coordinate by k

X = (-3, 7), Y = (-2, 10), and Z = (-5, 2)

∵ The points reflected in the x-axis

→ Change the signs of the y-coordinates of the 3 points

∴ X' = (-3, -7), Y' = (-2, -10), and Z' = (-5, -2)

a) The new ordered pairs are X' (-3, -7), Y' (-2, -10), Z' (-5, -2)

X = (-3, 7), Y = (-2, 10), and Z = (-5, 2)

∵ The points translated to be (x + 9, y + 2)

→ That means add the x-coordinates by 9 and y-coordinates by2

∴ X' = (-3 + 9, 7 + 2), Y' = (-2 + 9, 10 + 2), and Z' = (-5 + 9, 2 + 2)

∴ X' = (6, 9), Y' = (7, 12), and Z' = (4, 4)

b) The new ordered pairs are X' (6, 9), Y' (7, 12), Z' (4, 4)

A store has 7 red shirts, 15 black shirts, 13 white shirts, and 5 green shirts. Select the portion of the shirts that are black. Mark all that apply. *

Answers

Answer:

8/5 portion of black shirt is there

which is the correct answer

Answers

Answer:

53

Step-by-step explanation:

AED reflects over so the values are the same


A brand new TV bought on Black Friday was $599. The value of the TV
depreciates by 22% each year. When will the value of the TV be less than
$240?

Answers

22 percent of 599 is 119.8
and it would take three years.

Question in image :)

Answers

Answer:

A

x=> -6 is the inequality that represents the answer best.

the smaller of two numbers is 2 less than 1/3 the larger. the sum of the two numberrs is 50 what is the value of the numbers

Answers

The smaller number is 14 and the larger number is 36.

What is the equation?

The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.

Let the smaller number would be x

And the larger number would be y

Given that the smaller of two numbers is 2 less than 1/3 the larger

So x - 2 = (1/3)y ⇒ 3x - 6 = y

The sum of the two numbers is 50

So x + y = 50

Substitute the value of equation 3x - 6 = y in the above equation,

⇒ x + 3x - 6 = 50

⇒ 4x = 50 + 6

⇒ x = 56/4

⇒ x = 14

Substitute the value of equation x = 14 in the equation x + y = 50,

⇒ 14 + y = 50

⇒ y = 36

Hence, the smaller number is 14 and the larger number is 36.

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HELP ASAP! I will give brainliest answer

Solve each equation and check the solution
1/3x + 2 = 1

0.75x - 0.5x = -3

0.4x - 0.75x + 0.5x = 3

Answers

Answer: 1/3x + 2 = 1 answer.) x=-3

0.75x - 0.5x = -3 answer.) y = 17

Step-by-step explanation:

;w;

Hector knows there is a relationship between the number of cars and the time it takes him to was it
Wats the independent quantity and dependent quantity

Answers

The independent quantity is time and dependent quantity is number of cars washed .

Independent variables are variables that are manipulated or modified by the experimenter and are assumed to directly influence the dependent variable. For example, assign participants to a drug or placebo condition (independent variable) and measure  changes in anxiety intensity  (dependent variable). The dependent variable is the variable that is tested and measured in the experiment and is the "dependent". ' about the independent variable. An example of a dependent variable is depression symptoms that depend on the independent variable (type of treatment).

In the given relation between the number of cars and the time .

The relationship between the number of cars he washes and the time it takes to wash those cars represents a proportional variation

Let  y ----->  number of cars he washes

       x ------> time

The linear equation is y = kx

The independent variable is time x .

The dependent variable is the number of cars he washes, y .

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Cal is packing his suitcase to go on a trip. He wants to pack 4 pairs of pants chosen from the 8 pairs of pants in his closet and 5 shirts chosen from the 9 shirts in his closet. In how many different ways can this be done?

Answers

Answer:

8820 ways

Step-by-step explanation:

Given that :

Selecting 4 pairs of pant from 8 available and selecting 5 shirts from 9 available

Using combination :

4 pants from 8 = 8C4

5 shirts from 9 = 9C5

Recall:

nCr = n! / (n-r)! r!

8C4 * 9C5 = [8! /(8-4)!4!] * [9! /(9-5)!5!]

8C4 * 9C5 = (8! /4!4!) * (9! /4!5!)

8C4 * 9C5 = 70 * 126

8C4 * 9C5 = 8820 ways

Write an equation for the line in point slope form, that passes through the following points
(3,4) (6,10)

Answers

The equation pf a line in point slope form is as follows:

y - 4 = 2(x - 3)

How to find equation of a line in point slope form?

The equation of a line in point slope form can represented as follows:

The line passes through (3, 4)(6, 10).

Therefore, the point slope form is as follows:

y - y₁ = m(x - x₁)

where

m = slopex₁ and y₁ are the coordinates

Therefore,

m = 10 - 4 / 6 - 3

m = 6 / 3

m = 2

Hence, the equation pf a line in point slope form is as follows:

y - 4 = 2(x - 3)

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What is the circumference of the circle below? (Round your answer to the nearest tenth)

Answers

Answer: B.

Step-by-step explanation: Remember, circumfrence is 2 pi r. multiply 6.1 and 2. That is 12.2. Then, use a calculator to multiply that to get approx 76.65. Round that up to 76.7.

Choose the missing step in the given solution to the inequality -2x - 14> -4 + 3x. (1 point)
-2x-14>-4+3x
-5x - 14 >-4
X<-2
O-5x< 10
O-5x>-18
O-5x > 18
O-5x > 10
10. (01.04 MC)

Answers

Answer:

-5x > 10

Step-by-step explanation:

1. We know that when -14 thrown to the right hand side, it will turn to +14

2. +14 -4 = +10

3. Left hand side will remain -5x

4. Hence, -5x > 10

5. and the equation divided by -5, the > sign will change to <

6. x< -2

7. Since you're finding the missing step so it's -5x > 10

how do you do this ??? pls helpppp

Answers

Answer: m<2 = 83 degrees

Step-by-step explanation:

The sum of angles on a straight line= 180 degrees

97 + <2 = 180

<2= 180 -97

    =  83 degrees

A squirrel has stored its acorns in a hole that is 45 feet from the ground in a tall tree. The squirrel moved from a perch 100 feet above the ground to get to its stored acorns in 5.25 seconds. Interpret the quotient to describe the rate of change in the squirrel’s height above the ground. Give your answer to the nearest hundredth.

Answers

The quotient to describe the rate of change in the squirrel’s height above the ground is 27.619 feet per seconds to the nearest hundredth.

How to find the rate of change in the squirrel’s height above the ground.

Given data

height below ground = 45 feet

height above the ground = 100 feet

time of travel = 5.25 seconds

Rate of change calculation

total distance moved by the squirrel = height below ground + height above the ground

= 45 feet + 100 feet

= 145 feet

rate of change = total distance / time of travel

= 145 feet / 5.25 seconds

= 27.619 feet per seconds

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1. The total cost of renting a movie depends on the number of days you kept the movie. The table below gives the total cost of keeping a movie for a certain amount of days. Use this data to answer the following​

Answers

Answer:

2.25

Step-by-step explanation:

we should find the slope of table, bc question is that "find the rate of change" so pick up two any points

(3; 5.00)

(4; 7.25)

Formula of Slope:

[tex] \frac{y1 - y2 }{x1 - x2} [/tex]

[tex] \frac{5 - 7.25}{3 - 4} = 2.25[/tex]

YOU GET 60 POINTS!! Ronald rents a car from Cheap Rent-a-Car for $25 plus $0.05 per mile. Dixon rents a car from Great Cars for $40 plus $0.03 per mile. How many miles must they both drive for their rental fees to be the same?

Answers

10 miles i think :)

Answer:

750 miles

Step-by-step explanation:

25+0.05x=40+0.03x

0.02x=15

x=750

Sarah is buying roses and carnations to make center pieces for prom, Roses, x, cos
$3 each and carnations, y, cost $1 each. She can spend no more than $75 on the
Flowers. Which graph represents the solution to the problem?

Answers

Answer: Third option.

Step-by-step explanation:

We have the variables:

x =  number of roses that Sarah buys

y = number of carnations that Sarah buys.

Each rose costs $3, then the price for x roses is: x*$3.

Each carnation costs $1, then the price for y carnations is: y*$1.

The total price will be:

$3*x + $1*y

And she can spend no more than $75, then we have the inequality:

$3*x + $1*y ≤ $75

Writing this as a line, we have:

y ≤ 75 - 3*x

Then the graph of this will be:

A solid line with a negative slope and the shaded part will be below that line.

The value of y goes between 0 and 75.

The value x goes between 0 and the value of x such y = 0, this is:

y = 0 ≤ 75 - 3*x

 3*x ≤ 75

     x ≤ 75/3 = 25

Then the value of x goes between 0 and 25.

The correct option will be the third one.

The correct graph is option 3.

Given,

Sarah buys x no. of roses and y no. of carnations.

The cost of each roses be $3, so cost of x roses be 3 x .

And the cost of each carnations be $1, so cost of y carnations be y.

The total cost will be  [tex]3x + y.[/tex]

But as given in question she can spend no more than $75, so we have the inequality  [tex]3x + y \leq 75[/tex].

Writing the above equation as a line we have  [tex]y\leq 75-3x[/tex].

So graph of above line will be a solid line with a negative slope and the shaded part will be below that line so the value of y goes in between 0 and 75.

Now, value of x when y is o will be calculated from  [tex]y\leq 75-3x[/tex].

[tex]0\leq 75-3x[/tex]

[tex]3x\leq 75[/tex]

[tex]x\leq \frac{75}{3}[/tex]

[tex]x\leq 25[/tex]

Now we have values of x in between 0 and 25.

here we have y in between 0 and 75 with a negative slope and x in between 0 and 25. so the shaded part will be below that line goes in between 0 and 75 on y axis . option 3 has shaded part in between 0 and 75 on y axis  so the correct option is 3.

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Hurry please this is timed ​

Answers

Answer:

none

Step-by-step explanation:

they don't ever meet, so no solutions

And solutions in this case means where the 2 lines intersect, something parallel lines don't do

May someone help me out on this question?

Answers

Answer:

y = 2 for x < 0

     x for 0 ≤ x < 3

     3 for x ≥ 3

Step-by-step explanation:

From the graph attached,

Equation of line (1),

y = 2

Where x < 0

Let the equation of line (2) is,

y = mx + b

y-intercept 'b' = 0 [line (2) passes through origin]

Slope of the line 'm' = [tex]\frac{\text{Rise}}{\text{Run}}[/tex]

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

                                 = 1

Therefore, equation of line (2) will be,

y = x

where 0 ≤ x < 3

Equation of line (3) will be,

y = 3

Where x ≥ 3

Therefore, piecewise linear function will be,

y = 2 for x < 0

     x for 0 ≤ x < 3

     3 for x ≥ 3

Find the 101st term: 0, 0.1, 0.2, 0.3,

Answers

Answer:

the correct answer is 10.1 on the goggle forms it is 10

Step-by-step explanation:

0.1 multiplied by 101 is 10.1

Please help due in 10 minutes
+20 points if it’s right
Wrong answers will be blocked

Answers

Answer:

Step-by-step explanation: for the first picture

a, d,

second picture

1.DA = ZW

2. CB=YX

3. XY = BC

4. 8

sorry not sure about 5 and 6 though

Kelly is knitting a scarf for her brother. It took her 1/3 hour to knit 3/8 foot of the scarf. What is Kelly’s knitting speed, in feet per hour?

1. 1 1/8 per hour

2. 3 feet per hour

3. 2 1/2 feet per hour

4. 4 1/2 feet per hour

Answers

Your answer is A

Hope this helps!

it's 1 1/8 per hour.

Step-by-step explanation:

if it takes 1/3 hour to get 3/8, then if you add 6/8 which is the other 2/3 hour. you get 1 1/8

What is the domain and range

Answers

Answer:

Domain: [-4,5]

Range: [-3,5]

Step-by-step explanation:

WILL MARK BRAINLIEST FOR CORRECT ANSWER!!!!!!!!!!!!!

Maisie has saved up $50 to buy concert tickets, but the tickets cost $125. She is able to earn $15 per day by walking her neighbor’s dogs. How many days will Maisie have to walk the dogs to earn enough money to buy the tickets? Let d = the number of days worked.

What equation will you use to solve this word problem?

What equivalent equation can you write after combining like terms?

How many days will Maisie have to walk the dogs?

Answers

D=5

to make the $75 for the $125

Answer:

What equation will you use to solve this word problem?

✔ 50 + 15d = 125

What equivalent equation can you write after combining like terms?

✔ 15d = 75

How many days will Maisie have to walk the dogs?

✔ 5 days

Step-by-step explanation:

I got it right so hope this helped you and other people out :)

Gabriel was given a gift card for a coffee shop. Each morning, Gabriel uses the card to
buy one cup of coffee. Each cup of coffee costs $4 and the original amount of money
on the gift card was $20. Make a table of values and then write an equation for A, in
terms of x, representing the amount money remaining on the card after buying x
cups of coffee.
Number of Cups of Coffee Amount of Money Remaining on Card
Answer: A =

Answers

The answer is A = 20 - 4x
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