PLEASE HELp tHHIS IS dUE IN AN HOUR!!!!! ITS MY LAST QuESTION Tony and Tiffany colleg\ct semi-precious stones. At the Rockhound Hut, Tiffany paid $38 for 9 pounds of snowflake obsidian. At the Solid Rock Shop, Tony paid $19 for 3 pounds of the same type of stone. What did each person pay per pound and who made the btter buy?

Answer:

$7

Step-by-step explanation:

Let a be the price of the adult ticket and s be the price of the student ticket

That means that:

2a+3s=39

and

a+2s=23

Using elimination

-2(a+2s=23)

-2a-4s=-46

-2a-4s=-46

2a+3s=39

Eliminate a:

-s = -7 ; s = 7

I probably made this so much more complicated than it should be but...

Answer: m=20

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

A coefficient is the number before a variable. The D statement isn't true because the coefficient would be 2 instead of 2m. 2m would be the whole term.

Answer:

D

Step-by-step explanation:

The coefficient is the number in front of the variable. the number in front of the second variable is 2, not 2m

Answer:

B

Step-by-step explanation:

Hshwhehebebebebeheheh

Answer:

2 cats + 4 dogs = 6 animals in total.

:)

Answer:

f(x) = 165 * x + 3

Answer:

17

Step-by-step explanation:

Remark

In this formation, the chords cut each other so that

Equation

(3x - 1) * 3 = 12*(x -2)        Remove the brackets.

Solution

9x - 3 = 12x - 24                       Add 24 to both sides.

9x - 3 + 24 = 12x - 24 + 24      Combine

9x + 21 = 12x                            Subtract 9x from both sides

9x - 9x +21 = 12x - 9x

21 = 3x                                     Divide by 3

21/2 = 3x/3              

7 = x

Find QR

QR = 12 + x - 2

QR = 10 + 7

QR = 17

Answer:

d = 9

Step-by-step explanation:

Given

1 = [tex]\frac{1}{3}[/tex] d - 2 ( multiply through by 3 to clear the fraction )

3 = d - 6 ( add 6 to both sides )

9 = d

Answer:

d=9

Step-by-step explanation:

First we can do same to both side by adding 2 to both sides:

1=1/3d-2

+2     +2

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

3 = 1/3d

Then to get the d on its own, we multiply each side by 3

3=1/3d

*3    *3

---------

9=d

Our final answer is 9

Answer: vertical

Step-by-step explanation:

Answer: its A

Step-by-step explanation:

Answer:

Step-by-step explanation:

8x - 29 + 6x - 11 + 3x - 1 = 180

17x - 41 = 180

17x = 221

x = 13

m<K= 8(13) - 29 = 104 - 29 = 75°

Answer:

If he has no other expenses, 5

Step-by-step explanation:

4200/960

five, if you round up

4.375

Answer: Multiplication

Step-by-step explanation: The M in PEMDAS stands for Multiplication

Answer:

Tia has $1,282 more than Jon

Step-by-step explanation:

4,163-2881 = 1282

Tia has $1,282 more than Jon

Answer:

1282

Step-by-step explanation:

Answer:

a b c

plz give branliest

Step-by-step explanation:

Answer:

the first answer choice and the 3rd one down.

Answer:

(0,320) and (4,0)

Step-by-step explanation:

The question has missing details. So, I've added the complete question as an attachment.

From the question, we understand that:

Justine started when Michael was 320 yards from the top.

This coordinate can be represented as (0,320)

0 represents the time Justine started and 320 represents the number of yards left.

Every minute, Justine covers 80 yards.

This implies that:

At 1 minute, Justine will have: (320 - 80) yards left

At 2 minutes, Justine will have: (320 - 80 - 80) yards left

At 3 minutes, Justine will have: (320 - 80 - 80 - 80) yards left

At n minutes, Justine will have (320 - 80n) yards left

So, possible coordinates are:

[tex](x_1,y_1) = (0,320)[/tex]

[tex](x_2,y_2) = (1,320-80*1) = (1,240)[/tex]

[tex](x_3,y_3) = (2,320-80*2) = (2,160)[/tex]

[tex](x_3,y_3) = (3,320-80*3) = (3,80)[/tex]

[tex](x_4,y_4) = (4,320-80*4) = (4,0)[/tex]

Answer:

Select any two pairs of values from the given table. But, for simplicity, it’s a good idea to select coordinates with integer values. So, two points that represent Justine’s function for the yards left to hike in terms of the hours she’s spent hiking are (1, 270) and (2, 150).

Step-by-step explanation:

Sample Answer

Answer:

6

Step-by-step explanation:

Hope this helps

Answer:

25/6 = 4 with a remainder of 1

Answer:

the answer is

25÷6=4.1 because it is

Simple interest , I, is calculated by multiplying the principal, P, by the rate,r, by the time, t, in years:

I = P * r * t

Here, P = $600

r = 0.05 (decimal value for 5%)

t = 2 years

Part a)

The interest earned will be:

I = P * r * t

I = 600 * 0.05 * 2

I = $60  

Part b)  

The balance in the account will be $600 plus the interest earned or:

$600 + 60 = $660

Answer:

$60 interest

Step-by-step explanation:

divide 5 by 100 = 0.05

multiply 0.05 by 600 = 30

then multiply 30 by the number of years (2) 30×2= 60

60 dollars interest

I think

Answer:

Step-by-step explanation:

The center is at (2,-7). The radius is 2.

(x-2)² + (y+7)² = 2²

is the answer open circle?

Answer:

because since the question is 639 / 6

we immediately know that 600 / 6 is 100

639 / 6 = 106.5

Answer:

You just need a little conversion to get the answer.

[tex]\frac{639}{6}=\frac{600}{6}+\frac{39}{6}\\ = 100+\frac{39}{6} >100[/tex]

Answer:

Answer: B

Step-by-step explanation:

does not show up on graph

Answer:

(-2)(100) or 10^2 is 100

Step-by-step explanation:

(x -2)(x+100) =x

Additional roots of polynomial function P(x) with rational coefficients are (2i) and (- √10).

" If z = a +bi be the given complex number, then its conjugate is represented by [tex]\bar{z}[/tex] = a -bi , where  real parts remain same only imaginary part  get changed with opposite sign."

Theorem used

Conjugate Root theorem

Complex conjugate root theorem states that if P(x) is a polynomial in one variable with real coefficient , for P(x) if one root is a + bi  with real numbers a and b then its conjugate that is a - bi is also another additional root of P(x).

According to the question,

Two given roots of polynomial function with rational coefficients are -2i and √10.

As per Conjugate root theorem,

Here one root is 0 - 2i then other root is its conjugate 0 + 2i

Also one root is 0 + √10 then another root is 0 - √10.

Therefore, two additional roots are 2i and -√10.

Hence, additional roots of polynomial function P(x) with rational coefficients are (2i) and   (- √10).

Learn more about conjugate of complex number here

https://brainly.com/question/18392150

#SPJ2

Answer:

5

Step-by-step explanation:

the slopes will be the same if they are parallel

reagrange the equation to find the gradient

5x-y = -9

y= 5x+9

gradient = 5

Answer:

21.65 feets

Step-by-step explanation:

First we obtain the angle of elevation :

Using Pythagoras rule :

Cosθ = adjacent / hypotenus

Cos θ = 30 / 37

θ = cos^-1(30/37)

θ = 35.82°

Hence, height of flagpole :

Sin θ = opposite / hypotenus

Sin θ = x / 37

Sin(35.82) = x / 37

0.5853083 * 37 = x

x = 21.65 feets

Height of flagpole = 21.65 feets

Answer:

the answer would be 36

Step-by-step explanation:

hoped I helped:)

Answer:

Hey mate....

Step-by-step explanation:

This is your answer....

= 4×7+2

= 28+2

= 30

Hope it helps you....

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Answer:

d° = 62°

e° = 90°

f° = 27°

g° = 27°

h° = 118°

j° = 62°

k° = 63°

Step-by-step explanation:

The relationship between the given angles are;

k° = 63° (Vertically opposite angles)

63° + f° = 90° (Given complementary angles)

∴ f° = 90° - 63° = 27°

f° = 27°

g° = f° (Vertically opposite angles)

∴ g° = f° = 27°

g° = 27°

e° + 63° + f° = 180° (The sum of angles on a straight equals 180°)

∴ e° = 180° - (63° + r°) = 180° - (63° + 27°) = 90°

e° = 90°

h° = 118° (Vertically opposite angles)

118° + d° = 180° (The sum of angles on a straight equals 180°)

∴ d° = 180° - 118° = 62°

d° = 62°

j° = d° (Vertically opposite angles)

∴ j° = d° = 62°

j° = 62°