A store buys a TV for $100. They sell it for a 70% mark-up. What is the new cost of the TV?

Answer:

im gonna guess that the problem is 2x+13-9y, the answer is 38

Answer:

56

Step-by-step explanation:

according to the sum of the exterior angles of  a polygon, we get that the exterior angles of this polygon add up to 360

so our equation is: 9x-31+7x-2+4x+33=360,

the -31-2+33 cancel out,

and combining like terms gives us: 20x=360

so x=18,

from here we know that DCE equals to 180-7x+2, because it is an exterior angle, therefore the angle is 180-126+2, which is 56

Answer:

(7,-3)

Step-by-step explanation:

y = -3

substitute in the first equation

3x - y^2 = 12

3x - (-3)^2 = 12

3x - 9 = 12

3x = 12 + 9

3x = 21

x = 7

coordinates of intersection (7,-3)

Answer:

613 YEARS

Step-by-step explanation:

3a x 5b to the power of C Divided by D =2581

1968+613

Answer:

dprox = 1.295 parsecs× 206,000 AU 1 pc × 1.5 × 1011 meters 1 AU = 4.00×1016 meters . This length of time can also be written as 2.22 × 106 min, or as 37,100 hr, or as 1540 days, or as 4.23 years.

Step-by-step explanation:

hopefully this helps

Answer:

The answer is -19

Step-by-step explanation:

6^2-50-5

=6*6-50-5

=36-50-5

=-14-5

=-19

Answer:

-19

Step-by-step explanation:

[tex]c^{2} -50-5 = 6^{2} -50 -5 \\\\= 36 -50 - 5\\= -14 -5\\= -19[/tex]

Every 10 nights, she knits 30cm of the scarf.

Take 30cm and divide it by 10 days and you will get 3cm per day

Answer:

C(-31)

Step-by-step explanation:

= 5 - 4(1 + 2^3)

= 5 - 4(1 + (2 . 2 . 2))

= 5 - 4(1 + (4 . 2))

= 5 - 4(1 + 8)

= 5 - 4(9)

= 5 - 36

= (-31)

OPTION C

_________

[tex] \: [/tex]

5 - 4(1 + 2³) = ?

= 5 - (4(1) + 4(2³))

= 5 - (4 + 4(8))

= 5 - (4 + 32)

= 5 - 36

= -31

Step-by-step explanation:

it means to arrange the number from smallest to the biggest

13/21, 2/3 , 6/7

since 13/21 =0.61904....

2/3= 0.66666666

6/7 = 0.85714285714

if you need more help

my whats app number is +2348134440903

Answer:

13/21, 2/3 , 6/7

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

No, i can't and I don't know why, but here is the answer; ASK your MOM!?

Answer:

Step-by-step explanation:

Decrease % = 10% = 10/100 = 0.1

[tex]V =5000*(1 - 0.1)^{t}\\\\V = 5000* (0.9)^{t)[/tex]

Answer:

72

Step-by-step explanation:

4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4

Count the number of 4s. There are 18 of them.

So,

4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4+4

= 18 × 4

= 72

______

RainbowSalt2222 ☔

Answer:

[tex]4^4[/tex]

Step-by-step explanation:

[tex]256\div4=64\div4=16\div4=4[/tex]

[tex]4\times4\times4\times4=256[/tex]

[tex]4^4=256[/tex]

Hope this helps.

Let –

a/b = b/c = c/d = k

Then –

[tex]\qquad \longrightarrow {\purple{\underline{\underline{\pmb{\sf{ (a² + b² + c²) (b² + c² + d²)}}}}}}[/tex]

[tex]\qquad \sf\longrightarrow (b²k² + c²k² + d²k²) (c²k² + d²k² + d²)[/tex]

[tex]\qquad \sf\longrightarrow(c²k⁴ + c²k² + d²k²) (d²k²k² + d²k² + d²)[/tex]

[tex]\qquad \sf\longrightarrow (d²k⁶ + d²k⁴ + d²k²) (d²k⁴ + d²k² + d²)[/tex]

[tex]\qquad \sf\longrightarrow d²k²(k⁴ + k² + 1) d²(k⁴ + k² + 1)[/tex]

[tex]\qquad \longrightarrow {\pink{\underline{\underline{\pmb{\sf{ d⁴k²(k⁴ + k² + 1)²}}}}}}[/tex]

[tex]\qquad \longrightarrow {\purple{\underline{\underline{\pmb{\sf{ (ab + bc + cd)²}}}}}}[/tex]

[tex]\qquad \sf\longrightarrow (bk.b + ck.c + dk.d)²[/tex]

[tex]\qquad \sf\longrightarrow (b²k + c²k + d²k)²[/tex]

[tex]\qquad \sf\longrightarrow (c²k²k + d²k²k + d²k)²[/tex]

[tex]\qquad \sf\longrightarrow (d²k²k² × k + d²k³ + d²k)²[/tex]

[tex]\qquad \sf\longrightarrow (d²k⁵ + d²k³ + d²k)²[/tex]

[tex]\qquad \sf\longrightarrow{d²k(k⁴ + k² + 1)}²[/tex]

[tex]\qquad \longrightarrow {\pink{\underline{\underline{\pmb{\sf{ d⁴k²(k⁴ + k² + 1)²}}}}}}[/tex]

Henceforth –

▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬

Answer:

B. No Solution

Step-by-step explanation:

[tex]13-2(v-2)=-3-2v\\\\12-2v+4=-3-2v\\\\16-2v=-3-2v\\\\16\neq -3[/tex]

Answer:

C. Brooke finished in 115 minutes, so she was faster.

Step-by-step explanation:

Lets convert the measurements into the same units.

125 minutes (already in minutes)

1 hour (60 minutes) 55 minutes

60+55=115

Brooke ran the half marathon in 115 minutes

Since 115 is less than 125, Brooke was faster

Answer:

h'(x) = -10x + 20

Step-by-step explanation:

To get the derivative of [tex]ax^{n}[/tex], simply use the following formula:

[tex]a(n)x^{n-1}[/tex]

We have the function, h(x) = -5x^2 + 20x

Using the formula, we get the derivative to be:

-10x + 20

so h'(x) = -10x + 20

9514 1404 393

Answer:

  β ≈ 39.9°

  θ ≈ 50.1°

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relationships between the sides of a right triangle and the trig functions of the acute angles.

For angle β, we know the opposite side and the hypotenuse, so the relevant relation is ...

  Sin = Opposite/Hypotenuse

  sin(β) = 61/95

The inverse function is used to find the angle when the sine is known.

  β = arcsin(61/95) ≈ 39.9°

Of course, the angle θ is the complement of this:

  θ = 90° -39.9° = 50.1°

Answer:

Step-by-step explanation:

sin β = 61/95 = 0.642105

β = 39.95 degrees.

O = 90 - 39.95

= 50.05 degrees

cos O = 61/95.

Note that cos (90-β) = sin β.

Answer:56x

Step-by-step explanation:

Answer:

If u wanted to solve the system of equations ur answer would be...

(2,2)

x=2, y=2

Step-by-step explanation:

Answer:

section A holds 23,500 Section B holds 11,750 And Section C holds 11,750

Step-by-step explanation:

Section A is half of the stadium so divide 47,00 by 2 you get 23,300 so that is Section A than b and c are the other half for divide 23,500 by 2 and you get 11,750

Answer:

The answer is A, the first one

Step-by-step explanation:

Hope this helps!

answer:

・x = 50

・y = 61

step-by-step explanation:

・first things you should know —

y + 8 + 2x + 11 = 180 ( supplementary angles equal to 180° )

・five sides add up to 540° ( pentagon! )

・therefore:

108 + 125 + 98 + 98 + 2x + 11 = 540

440 + 2x = 540

2x = 100

・x = 50

use what you know and plug in ;

y + 8 + 2x + 11 = 180

y + 8 + 2(50) + 11 = 180

y + 119 = 180

・y = 61

・you can always plug in or substitute to check your answers.ᐟ

Answer:

The number is log 47base9

Answer:

6

Step-by-step explanation:

g(5) represents x=5

you would substitue 5 for x in g(x)=2x-4

g(5)=2(5)-4

g=6

Answer:

71/40

Step-by-step explanation:

We find the common denominator, which is 40,

so the first numerator is 9x4, and the second numerator is 7x5,

and adding them we get 71

and so the answer is numerator/denomitar = 71/40

Answer:

Step-by-step explanation:

Add up the volumes to find the volume of the mixture:

Answer:

C. x < 32

Step-by-step explanation:

Third option

Answer:

C:1 and 3/4

Step-by-step explanation:

We can use a ratio to solve

1 day             x days

-------    =    -------------

24 hours       42 hours

Using cross products

1 * 42 = 24x

Divide each side by 24

42/24 = x

21/12 = x

7/4 = x

4/4 + 3/4 =x

1 3/4 =x

1 3/4 days = x

Answer:

d

Step-by-step explanation:

easy

Answer:

3

Step-by-step explanation: