Solve by graphing :

-x + 3y = -9
y = -x + 1

Answer:

The answer is16.25

Step-by-step explanation:

16 + 0.25 = 16.25

Answer:

Answer: -17

Step-by-step explanation:

1 ) x² - y2

2 ) -4² - .5(2)

3 ) -16 - 1

4 ) -17

Answer:

arc BC=96 degrees

angle B=55 degrees

angle C=77 degrees

arc AB=154 degrees

(check: 48+55+77=180 and 110+154+96=360)

Step-by-step explanation:

angles A, B, & C are inscribed angles

angle A=1/2 arc BC

arc BC=96

since arc AC=110, then arc AB=360-110-96

arc AB=154

angle B=1/2(110)

angle B=55

angle c=1/2(154)

angle c=77

Answer:

x = -3

Step-by-step explanation:

Given expression is,

[tex]\frac{2}{x}- \frac{4x}{2x-3}=-2[/tex]

[tex]\frac{2(2x-3)}{x(2x-3)}-\frac{4x(x)}{x(2x-3)}=-2[/tex]

[tex]\frac{2(2x-3)-4x^{2} }{x(2x-3)}=-2[/tex]

(4x - 6) - 4x² = -2x(2x - 3)

4x - 6 - 4x² = -4x² + 6x

4x - 6 = 6x

6x - 4x = -6

2x = -6

x = -3

Answer:

K = 2y + 4

Step-by-step explanation:

Let K = Keith

The expression that can be used to find Keith's age will be K = 2y + 4.

An equation is a statement that two expressions, which include variables and/or numbers, are equal. In essence, equations are questions, and efforts to systematically find solutions to these questions have been the driving forces behind the creation of mathematics.

It given that, Keith is 4 years older than twice sheila's age. Sheila is y years old.

Suppose the age of Keith is shown by K and Sheila is y years old.

Expression is the combination of constants and variables with mathematical operators.

The expression can be used to find Keith's age is obtained as,

K = 2y + 4.

Thus, the expression that can be used to find Keith's age will be K = 2y + 4.

Learn more about the equation here,

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Answer:

Step-by-step explanation:

18 miles..................60 min

18/60= 0.30 miles/ min

10  minutes   0.30*10=3 miles

Answer:

3 miles

Step-by-step explanation:

1 per hour = 60 minutes=> (18 x 10)/60 = 3 miles

Answer:

x=109

Step-by-step explanation:

The angles inside of a triangle all add up to 180 degrees. So:

23+48+x=180

Simplify Like-Terms:

71+x=180

Subtract 71 from both sides:

x=109

It should be 125 as

BC=100

and it's four times the length of AB then

100/4=25

then 100+25=125

I hope this helps

Answer:

x=1,-9

Step-by-step explanation:

Move all terms to the left side of the equation and simplify.

Tap for more steps...

x

2

+

8

x

−

9

=

0

Use the quadratic formula to find the solutions.

−

b

±

√

b

2

−

4

(

a

c

)

2

a

Substitute the values

a

=

1

,

b

=

8

, and

c

=

−

9

into the quadratic formula and solve for

x

.

−

8

±

√

8

2

−

4

⋅

(

1

⋅

−

9

)

2

⋅

1

Simplify.

Tap for more steps...

x

=

−

4

±

5

The final answer is the combination of both solutions.

x

=

1

,

−

9

Answer:50/100

Step-by-step explanation: 50/100 simplifies into 5/10, meaning they equal each other. 50 is half of 100, and 5 is half of 10.

Answer:

Step-by-step explanation:

9 1/6 ÷ 5 + 3 1/3 = [tex]\frac{55}{6}*\frac{1}{5}+\frac{10}{3}[/tex]

                         [tex]=\frac{55}{30} + \frac{10}{3}\\\\= \frac{55}{30}+\frac{10*10}{3*10}\\\\=\frac{55}{30}+\frac{100}{30}\\\\=\frac{55+100}{30}\\\\=\frac{155}{30}\\\\=\frac{31}{6}\\\\=5\frac{1}{6}[/tex]

a + b

0 + (-20)

= -20

Step-by-step explanation:

a + b = ?

a = 0 and b = -20

0 + (-20)

= -20

Answer:

complet the squares

(x^2+14x)+(y^2+12y)=-60

add negative and positive 1/2 of linear coefs inside parenthaees

14/2=7, 7^2=49

12/2=6, 6^2=36

(x^2+14x+49-49)+(y^2+12x+36-36)=-60

factor perfect square

((x+7)^2-49)+((y+6)^2-36)=-60

get rid of parnthaeses

(x+7)^2-49+(y+6)^2-36=-60

(x+7)^2+(y+6)^2-85=-60

add 85 to both sides

(x+7)^2+(y+6)^2=25

B is answer

Step-by-step explanation:

Answer:

Positive, Positive

Step-by-step explanation:

The only variable is an absolute value which means that as x approaches infinity it can only get bigger and bigger

Answer:

£84.5

Step-by-step explanation:

Given ratio = 2:5:6

Amount that Louis got from the total amount = £39

Step 1: Add the ratio together

2+5+6=13

Step 2: covert the given ratio into fraction

George ratio=2/13

Charlotte ratio=5/13

Louis ratio= 6/13

✓LET THE AMOUNT THAT WAS SHARED AMONG THEM= Y

But we know that Louis got £39, then we can compute How much did they shared using "Louiz" shrare as

Louis ratio= 6/13 × Y= £39

= 6Y/13 = 39

Cross multiply

13×39= 6Y

507= 6Y

Y= 84.5

Hence, the amount they shared was £84.5

Answer:

3

Step-by-step explanation:

2916=4w^6

or,54^2=(2w^3)^2

or,54=2w^3

or,54/2=w^3

or,27=w^3

or,3√27=w

or,3√3^3=w

or,w=3 answer

The expression that represents Cindy's profit is $3.5b - $128.09.

Cindy's total profit is $30.82.

Profit is total revenue less total cost. Total revenue is the selling price per unit multiplied by the total units sold.

Profit = total revenue - total cost

($3.50b) - ($65.25 + $62.84)

$3.5b - $128.09

Profit for the first day = $3.5(24 + 15)  - $128.09

= ($3.5 x 39) - $128.09

= $136.50 - $128.09

=$8.41

Profit for the next day = $3.5(26 + 17)  - $128.09

= ($3.5 x 43) - $128.09

= $150.50 - $128.09

= $22.41

Total profit = $22.41 + $8.41 = $30.82

To learn more about profit, please check: https://brainly.com/question/26181966

Answer:

D.

Step-by-step explanation:

Answer:

3/16 gallon

Step-by-step explanation:

From the given information in the question, we want to get the number of gallons of apple juice contained in the mixture

From the question, we are told this is 3/16 gallon

So the number of gallons of apple juice contained in the mixture is 3/16

Answer: 4

Step-by-step explanation: |−6|−|2|

=6−|2|

=6−2

=4

Answer:

$51.41

Step-by-step explanation:

trust

Answer:

4-3n

Step-by-step explanation:

would be the correct answer

Answer:

37/100 = 0.37 (the first one)

Step-by-step explanation:

a percentage is out of 100.

If you divide 37 by 100, you get 0.37

Answer:

37%=0.37=37/100

Step-by-step explanation:

Convert the percentage to an equivalent decimal number by placing the percentage sign with x1/100. The decimal equivalent to the percentage by moving the decimal 2 places to the left from the convert postion.

Answer: its C i got it right :)

Answer:

107.18

Step-by-step explanation:

To find the number, divide 103 by 0.961

103/0.961

= 107.180020812 or approximately 107.18

So, the answer is 107.18

Answer:

The value of x is 26.

Step-by-step explanation:

In a triangle, the total angles is 180°. In order to find the value of x, you have to add up all the angles in terms of x and make it equals to 180°

2x + 3x + 50 = 180

5x + 50 = 180

5x = 180 - 50

5x = 130

x = 130 ÷ 5

x = 26

As we know that,

Sum of all angles of triangle = 180°

Given,

Angles are 2x , 3x and 50°

Now,

[tex] \rightarrow \: 2x + 3x + 50 = 180[/tex]

When plus sign goes to another side then,it become minus.

[tex] \rightarrow \: 5x = 180 - 50[/tex]

[tex] \rightarrow \: 5x = 130[/tex]

[tex] \rightarrow \: x = \cancel \dfrac{130}{5} [/tex]

[tex] \rightarrow \: x = 26[/tex]

Hence,the value of x is 26°.