A computer store is having a sale. A laptop originally cost $700 and is now being sold at a fifth off of the original price. What is the sale price of the laptop?

Step-by-step explanation:

is this simultaneous equation

reply in the comments

Answer:

[tex]{y,x}={2,-10/3}[/tex] ( No)

Step-by-step equation:

System of Linear Equations entered :

 [1]           y=-4+6

 [2]           3x+4y=-2

Equations Simplified or Rearranged :

  [1]    y = 2

  [2]    4y + 3x = -2

Graphic Representation of the Equations :

   0? + y = 2        3? + 4y = -2  

Solve by Substitution :

// Solve equation [1] for the variable  y

  [1]    y = 2

// Plug this in for variable  y  in equation [2]

  [2]    4•(2) + 3x = -2

  [2]    3x = -10

// Solve equation [2] for the variable  x

  [2]    3x = - 10

  [2]    x = - 10/3

// By now we know this much :

   y = 2

   x = -10/3

We are done

Solution :

{y,x} = {2,-10/3}

60%

Hi there !

5 ........... 100%

3 .................x%

x = 3×100/5

= 300/5

= 60%

Good luck !

From the AAS property of congruency the side ab≅ac in the isosceles triangle.

Congruency generally shows the similarities between two triangles or any other shape for the similarity of the two shapes they should have any three properties same like their three sides, Three angles or one angle two sides and so on.

Now for an Isosceles triangle abc given in the figure

[tex]\angle bad=\angle cad[/tex]

[tex]\angle abd=\angle acd[/tex]

[tex]ad=ad[/tex]   (common side)

So from the AAS property, the triangle [tex]\Delta bad=\Delta acd[/tex] are congruence

The side ab will also be equal to the side ac.

So from the AAS property of congruency is the side ab≅ac in the isosceles triangle.

To know more about congruency follow

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Answer:

The answer would be "A". Converse of the isosceles triangle theorem.

Step-by-step explanation:

You're Welcome :)

Answer:

4(7z+4)

Step-by-step explanation:

If you are trying to factors this then it would be 4(7z+4)

Answer:

12

Step-by-step explanation:

Answer:

B $0.75

Step-by-step explanation:

0.75x 3= 2.25

if the hotdogs are 2x as much as the drinks then

0.75x2= 1.50

then if there are 2 hot dogs

1.50x2=3

2.25+3=5.25

Answer:

The maximum number of chairs he can buy is C ≤ 22

Step-by-step explanation:

Let B represent the number of beds the hotel manager can buy.

Let C represent the number of chairs the hotel manager can buy.

Putting this into an expression, we have:

150B + 50C ≤ 2000

Since the hotel manager buys 6 beds, putting this into the information above:

150 (6) + 50C ≤ 2000

900 + 50C ≤ 2000

50C ≤ 2000 - 900

50C ≤ 1100

C ≤ 22

Answer:

the answer should be 27 you jus add them up

Step-by-step explanation:

just add them up and you get 27

The inequalities that can represent this situation if m is the number of songs Miguel can buy are:

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

For this case, it is provided that:

If he buys m = 0, he doesn't need to open an account, thus, saving all money of gift.

Else, if he buys m > 0, then:

Let c = total cost he will have to pay for m songs.

m songs will cost [tex]1.50 \times m[/tex] dollars

Total cost he will have to pay = account activation charge + m songs; cost

[tex]c = 1 + 1.5m[/tex]

(we don't write symbols like of currency generally, and understand it from context. Also, sign of multiplication is often hidden if there are non numeric symbols and numbers being multiplied are written together)

Since we have limited money, so:

c needs to be less than or equal to $25

This is symbolically written as:

[tex]c \leq 25[/tex]

But since we've got [tex]c = 1 + 1.5m[/tex], thus:

[tex]1 + 1.5m \leq25\\[/tex] (option A).

This can be reversed as:

[tex]25 \geq 1 + 1.5m[/tex] (Option E)

(both things are same, as [tex]c \leq 25[/tex] or [tex]25 \geq c[/tex] both are same since if c is less than or equal to 25, then that means 25 is greater than or equal to c)

(the case when c= 0, we have 0 < 25, so it is also included in those two options, as a special case)

Thus, the inequalities that can represent this situation if m is the number of songs Miguel can buy are:

Learn more about inequalities here:

https://brainly.com/question/11901702

Answer:

A and E are correct

Step-by-step explanation:

Answer:

Option B. ∠3 = 130°

Step-by-step explanation:

In the given question a, b, c are the parallel wires and pipe cleaner is the transverse.

Now we take two parallel wires a, c and pipe cleaner as transverse then

we have to find the relation between angle 4 and 130°

∠4 = ∠9 [ alternate interior angles ]

∠3 = 130° [ they are the alternate interior angles ]

Therefore option B. is the correct option.

Answer:

B. They are alternate interior angles, so angle 3 also measures 130°.

Step-by-step explanation:

The appropriate testing hypotheses to determine whether there is a relationship between the number of minutes spent on social media each day and GPA is c H.o: B = 0, Ha: B ≠ 0.

Hypothesis testing simply means an act in statistics whereby an analyst tests an assumption regarding a population parameter.

In this case, from the complete question, the hypotheses to determine whether there is a relationship between the number of minutes spent on social media each day and GPA is H.o: B = 0, Ha: B ≠ 0.

This is essential to provide evidence concerning the plausibility of the hypothesis with the data given.

Learn more about hypotheses on:

https://brainly.com/question/11555274

Answer:

-59 im pretty sure

Answer:

Question 3: 2.7 hours

Question 4: 2.3 hours

Step-by-step explanation:

Question 3:

Time taken by 1st delivery driver = t1 = 6 hours

Time taken by 2nd delivery driver = t2= 5 hours

Time together = T

[tex]{\dfrac{ 1 }{ T } = \dfrac{ 1 }{ t1 } + \dfrac{ 1 }{ t2 }}[/tex]

[tex]{\dfrac{ 1 }{ T } = \dfrac{ 1 }{ 6 } + \dfrac{ 1 }{ 5 }}[/tex]

[tex]{\dfrac{ 1 }{ T } = 0.166+0.2 = 0.366}[/tex]

[tex]{T = \dfrac{ 1 }{ 0.366 } = 2.732}[/tex]

Rounded to the nearest tenth: 2.7 hours

Question 4:

The first valve takes 4 hours to completely drain = t1

[tex]\mathrm{Rate\:for\:first\:valve\:will\:be\:\dfrac{1}{4}\:per\:hour}[/tex]

The second valve taken 5.25 hours to completely drain = t2

[tex]\mathrm{Rate\:for\:second\:valve\:will\:be\:\dfrac{1}{5.25}\:per\:hour}[/tex]

Combined time = T

[tex]{\dfrac{ 1 }{ T } = \dfrac{ 1 }{ t1 } + \dfrac{ 1 }{ t2 }}[/tex]

[tex]{\dfrac{ 1 }{ T } = \dfrac{ 1 }{ 4 } + \dfrac{ 1 }{ 5.25 }}[/tex]

[tex]{\dfrac{ 1 }{ T } = 0.25+0.190 = 0.44}[/tex]

[tex]{T = \dfrac{ 1 }{ 0.44 } = 2.272}[/tex]

Rounded to the nearest tenth: 2.3 hours

Answer: Exact Form:2/3 (2 over 3)  Decimal Form:0.¯6

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

took the test

Answer:

C

Step-by-step explanation:

‒4x‒5x>55‒10=‒9x>45

=‒9x/-9>45/‒9

=x<-5

i think it is easy &i hope my answer helps you

Answer:

d

Step-by-step explanation:

Substitute x = -1 into the equations. If the solution is y = 4 for both, then (-1, 4) is the solution.

(a) y = 1 + 3 = 4

    y = -1 + 1 = 0

(b) -1 - y = 2  ⇒  y = -3

  -1 + y = -6  ⇒  y = -5

(c) -1 + y = -2  ⇒  y = -1

7(-1) - 4y = 8  ⇒  y = -15/4

(d) y = 1 + 3 = 4

   y = 2(-1) = 6 = 4

Answer:

The solution is x = -4

Step-by-step explanation:

y=4x+2
we can see here that y equals 4x+2

y =3x-2

The y here is the same y, therefore we ban subtitute the first equation into the second one, like this:

y =3x-2

4x+2 = 3x-2

now just solve it algebraically.

4x + 2 - 3x = 3x -2 -3x

x +2 -2 = -2 -2

x = -4

The solution is x = -4

Answer:

The number of given points=3, y, and z

Step-by-step explanation:

Cost = 3 rupees per sq. m.

Cost = 3 x 2400

Cost = 7200 rupees

So your answer is 7,200

The time required for the invested money to reach the accrued amount is 8 years.

The compound interest formula is expressed as;

A = P(1 + r/n)^(n*t)

Where A is accrued amount, P is principal, r is rate,  and t is time.

Given that;

Plug the given values into the compound interest formula and solve for time t.

A = P(1 + r/n)^(n*t)

t = In(A/P) / n[ In( 1 + r/n ) ]

t = (In( $8900 / 6500 )) / ( 365[ In( 1 + 0.04/365 ) ] )

t = (In( $8900 / 6500 )) / ( 365[ In( 1 + 0.04/365 ) ] )

t = 7.857

t = 8 years.

Therefore, the required time is 8 years.

Learn more about compound interest here: brainly.com/question/27128740

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Answer:7.9

Step-by-step explanation:

Answer:

4 Days Late

Step-by-step explanation:

The first is 2.50, then 20 per day.

Answer:

3π

Step-by-step explanation:

Perimeter of circle = 2rπ

r = 3

P = 6 π

semicircle = 1/2 circle

P = 3π

Answer: only one triangle

Step-by-step explanation:

How many triangles can be constructed with side lengths of 6.4 cm, 8.3 cm, and 14.6 cm? 0 1 more than one

Answer:

What is equation?

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

Answer:

m=-3/2

Step-by-step explanation:

To find slope we can use the formula y2-y1/x2-x1

Let's plug in our points

-1-2/1--1 which is -3/2

Our slope is -3/2

Answer:

m=-3/2

Step-by-step explanation:

In order to solve this problem, you must use the slope formula.

Slope formula:

[tex]\sf{\dfrac{Y_2-Y_1}{X_2-X_1}=\dfrac{RISE}{RUN} }[/tex]

y2=(-1)

y1=2

x2=1

x1=(-1)

Rewrite the problem down.

Solve.

[tex]\sf{\dfrac{-1-2}{1-(-1)}=\dfrac{-1-2}{1+1}=\dfrac{-3}{2}=\boxed{\sf{-\dfrac{3}{2} }} }[/tex]

Therefore, the slope is -3/2, which is our answer.

I hope this helps you! Let me know if my answer is wrong or not.

Answer: $38.16

Step-by-step explanation:

Finding total costs with sales tax is really quite simple. Here is the formula.

O x P + O

use key below.

1. Solve

= 36 x 0.06

= $2.16

= 2.16 + 36

= $38.16

Key:

O = Original Price

P = Sales Tax Percentage

I hoped this answer helped your wonderful, creative minds. Keep working hard, and touch the stars.

- Mona May

Answer:

Its a parallelogram

Hope you have a great day!

Answer:

$4.50

Step-by-step explanation:

We must find the unit rate.

Unit rate equals: 1 apple for 50 cents.

.5 multiplied by 9 is 4.5

Answer:

Step-by-step explanation:

C.f.