y=4x-6
2x-3y=8
if this problem is to be solved bye substitution, which is correct step

Let the money with Miguel be x.

Then :

Money with Kira = x - 9

Money with Charlie = 4x

Total money in their wallet = $105

This can be written in an equation as :

[tex] = \tt \: x + x - 9 + 4x = 105[/tex]

[tex] = \tt2x + 4x - 9 = 105[/tex]

[tex] = \tt 6x - 9 = 105[/tex]

[tex] = \tt6x = 105 + 9[/tex]

[tex] = \tt6x = 114[/tex]

[tex] = \tt x = \frac{114}{6} [/tex]

[tex] = \tt x = 19[/tex]

Which means :

Money with Miguel = $19

Money with Kira :

= 19 - 9

Thus, Kira has $10 in her wallet.

Money with Charlie :

= 4 × 19

= 76

Thus, Charlie has $76 in his wallet.

Answer:

Let the money with Miguel be x.

Then :

Money with Kira = x - 9

Money with Charlie = 4x

Total money in their wallet = $105

This can be written in an equation as :

= \tt \: x + x - 9 + 4x = 105=x+x−9+4x=105

= \tt2x + 4x - 9 = 105=2x+4x−9=105

= \tt 6x - 9 = 105=6x−9=105

= \tt6x = 105 + 9=6x=105+9

= \tt6x = 114=6x=114

= \tt x = \frac{114}{6}=x=

6

114

= \tt x = 19=x=19

Which means :

Money with Miguel = $19

Money with Kira :

= 19 - 9

Thus, Kira has $10 in her wallet.

Money with Charlie :

= 4 × 19

= 76

Thus, Charlie has $76 in his wallet.

Therefore,

Money with Kira = $10

Money with Charlie = $76

Money with Miguel = $19

Answer:

240 square units

Step-by-step explanation:

rectangle= 20x10=200

triangle= 1/2(4)(20)=40

200+40=240

Answer:

360 divied by 2.4 = 150

Step-by-step explanation:

Answer:

you can't find the square root of a negative

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

3a+b=54

3a+9=54

54-9=45

45 ÷ 3= 15

3 × 15 - 9=54

45 + 9=54

Answer:

it is a right triangle

Step-by-step explanation:

Answer:

You are calculating the constant speed

Answer:

0.02

Step-by-step explanation:

0.5 x - 1.2 = 0.4x + 3.3

0.1x = 4.5

x = 0.02

Hope that helps!

Answer:

domain

Step-by-step explanation:

This is domain, as it is the complete set of values. Range would be the difference between the highest and the lowest value (5-1)

Answer:

1 antonym

2 interrogative

3 verb

4 inflection

5 declarative

6 synonym

7 exclamatory

8 pronunciation

9 accent

10 imperative

1) Antonym

2) Interrogative

3) Verb

4) Inflection

5) Declarative

6) Synonym

7) Exclamatory

8) Pronunciation

9) Accent

10) Imperative

Answer:

15.43:27

Step-by-step explanation:

I think it is correct

Answer:

Step-by-step explanation:

Ryobi has a budget of $7200 for 80 chairs. They can buy leather chairs for $125 each, mesh chair for $100 each, and fabric chairs for $175 each. They want to have three times as many fabric chairs as leather chairs. How many of each chair should they buy?

[tex]\pink{\bigstar}[/tex] Amount of apple juice Will added [tex]\large\leadsto\boxed{\tt\purple{1 \frac{5}{12}}}[/tex]

➪ Amount of grape juice Will added = 1/4

➪ Amount of juice in total after adding the apple juice = 1⅔

Therefore, it is clear that the amount of apple juice Will added to the cup will be the difference in total amount of juice and amount of grape juice.

Hence,

➪ [tex]\sf 1 \frac{2}{3} - \dfrac{1}{4}[/tex]

➪ [tex]\sf \dfrac{5}{3} - \dfrac{1}{4}[/tex]

• Taking an L.CM:-

➪ [tex]\sf \dfrac{20 - 3}{12}[/tex]

➪ [tex]\sf \dfrac{17}{12}[/tex]

➪ [tex]\large{\bold\red{1 \frac{5}{12}}}[/tex]

Therefore, the amount of apple juice added is [tex]\large{\bold 1 \frac{5}{12}}[/tex]

Answer:

4 - 12 - 4x + (- 4x)

-8 (x + 1)

Step-by-step explanation:

16x - 12 - 24x + 4

16x - 24x - 12 + 4

-8x - 8

1)40x - 16 = not equivalent

2)4 - 12 - 4x + (- 4x)

4 - 12 - 4x - 4x

-8 - 8x = - 8x - 8 (equivalent)

3) 8x - 8 (not equivalent)

4)-8 (x + 1) = - 8x - 8 (equivalent)

Answer:

117

Step-by-step explanation:

180-101 = 79

180-(79+38)

180-117

63

180-63=117

Step-by-step explanation:

Start filling in from the bottom, left to right

Row 2 from bottom:

Row 3 from bottom:

Row 4 from bottom:

Row 5 from bottom:

Top row:

Answer:

1571in^3

Step-by-step explanation:

Given data

h= 20 in

d= 10 in

r= 10/2= 5 in

V= πr^2h

substitute

V= 3.142*5^2*20

V=3.142*25*20

V=1571 in^3

Hence the volume is 1571in^3

Answer:

45

Step-by-step explanation:

9y+1073741824

....…....…....…....…....…....…....…...

…

....…....…....…

Answer:

correct answer is A

She chose C because she added the numerators and the denominators

Step-by-step explanation:

7/5x5/10=35/50 or 7/10

Answer:

A) 35/50 m^2

Step-by-step explanation:

7/5 x 5/10 = 35/50 = 0.7 m^2

Answer:

Range: 1 > x > 3

Step-by-step explanation:

We are given then function;

y = x³ - 6x² + 9x + 5

dy/dx = 3x² - 12x + 9

We want to find the range of values of x for which dy/dx > 0

Thus;

3x² - 12x + 9 > 0

Using quadratic formula, we have;

x = 1 and x = 3

Let's define the range;

try x = 0

3(0²) - 12(0) + 9 = 9

This is more than 0, so it is part of the solution.

Let's try x = 4

3(4²) - 12(4) + 9 = 9

This is more than 0 so it is part of the solution

Let's try x = 2

3(2²) - 12(2) + 9 = -3

This is less than 9 and so it's not part of the solution.

Thus the range of values of x for which dy/dx > 0 is;

1 > x > 3

Answer:

y= x/2 - 5

Step-by-step explanation:

Answer:

Divide each term by 2

Step-by-step explanation:

You would get y = 1/2x - 5

Answer:

That would be ~p through~v.

Answer:

y variable will be elimited when adding the system of equations

x = 2 or y = 3

Step-by-step explanation:

- x + 6y = 16

8x - 6y = -2

Add both equations

(-x + 8x) + {6y + (-6y)} = 16 + (-2)

7x + 6y - 6y = 16 - 2

7x + 0 = 14

7x = 14

x = 14/7

x = 2

- x + 6y = 16

- 2 + 6y = 16

6y = 16 + 2

6y = 18

y = 18/6

y = 3

the x variable will be eliminating when adding the system of equations and the

y variable will be elimited when adding the system of equations

or the sum of the system equations is negative 8X = 14 or

x = 2 or y = 3

or there's only one solution to the system equations

Answer:

a⁸

Step-by-step explanation:

Rule: a^x. X a^y = a^x+y

Answer:

Step-by-step explanation:

x² - x -6 = x²  + 2x - 3x - 3*2

            =x(x + 2) - 3(x + 2)

            = (x + 2 )(x - 3)

[tex]\frac{1}{x^{2}-x-6}+\frac{x}{x+2}=\frac{1}{(x +2 )(x - 3)}-\frac{x}{x + 2}\\[/tex]

                      [tex]= \frac{1}{(x+2)(x-3)}-\frac{x(x-3)}{(x+2)(x-3)}\\\\=\frac{1-x(x-3)}{(x+2)(x-3)}\\\\=\frac{1-x^{2}+3x}{(x+2)(x-3)}\\\\[/tex]

Answer:

I'm 99% sure that it is $3,311

Step-by-step explanation:

sorry if i was wrong

Answer:

6x^2-7x-20 (c)

Step-by-step explanation:

(3x+4)(2x−5)

=(3x+4)(2x+−5)

=(3x)(2x)+(3x)(−5)+(4)(2x)+(4)(−5)

=6x^2−15x+8x−20

=6x^2-7x-20

Answer:

C

Step-by-step explanation:

Given

(3x + 4)(2x - 5)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(2x - 5) + 4(2x - 5) ← distribute both parenthesis

= 6x² - 15x + 8x - 20 ← collect like terms

= 6x² - 7x - 20 → C