The graph shown can be used to solve which of these systems of equations?
A)
y = -7x and y = x - 78
B)
y = -7x and y = x2 - 78
C)
y = 7x and y = x - 78
D)
y = 7x and y = x2 - 78

Answer:

the picture is black

Step-by-step explanation:

Answer:

[tex]S= 4[/tex]

Step-by-step explanation:

Given

[tex]Total = 20[/tex]

[tex]Selection = 5[/tex]

Required

Determine the size of sample space

Represent this with S

S is calculated by dividing the total number of kids by the number of selection.

[tex]S = \frac{Total}{Selection}[/tex]

[tex]S = \frac{20}{5}[/tex]

[tex]S= 4[/tex]

Hence, the sample space has a size of 4

Answer:

x=8

Step-by-step explanation:

1. 91+12x-7=180                                    2. 68=7x+12

84+12x=180                                               56=7x

12x=96                                                       8=x

x=8

Consecutive angles                                    Alternate Interior Angles

Answer:

a greater slop is your answer your welcome

Answer:

a greater slope. The y-interpret will be 110t

Step-by-step explanation:

Answer:

w=3 (please give me brianliestt!!)

Step-by-step explanation:

4w+3=3w+6 (subtract 3 from both sides)

     -3       -3

4w=3w+3 (subtract 3w on both sides)

-3w  -3w

1w=3 (divide by 1)

w=3

Answer:

I'm thinking B

Step-by-step explanation:

but I'm not 100

Answer:

68.265% is your answer

Step-by-step explanation:

Happy Holidays!!

Step-by-step explanation:

Note that t = d/r where t is time, d is distance, and r is rate/speed.

We can come up with two equations with the information given and the equation:

t_1 hr = (10 km)/(x km/hr)

t_2 hr = (12 km)/(x - 1 km/hr)

where t_1 is the time taken to run the 10km the first day and t_2 is the time taken to run the 12km the second day.

We know that 30 minutes is 1/2 of an hour and that t_1 is 30 minutes less than t_2 (as stated in the question). Therefore, we can write:

t_1 = t_2 - 1/2

Substituting the values we derived:

(10 km)/(x km/hr) = (12 km)/(x - 1 km/hr) -1/2

Then we can evaluate by multiplying by 2x(x-1) on both sides:

20(x-1) = 24x - (x)(x-1)

20x - 20 = 24x - x^2 + x

x^2 -5x -20 = 0

And we are done.

I hope this helps! :)

An equation is formed when two equal expressions. The equation for the time can be written as (12/x-1)-(10/x)=0.5. The value of x is 7.623.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

A.) Given Alfonso runs 10 km at an average speed of x km/h. Therefore, the time taken by Alfonso to rum 10km is 10/x hour.

Also, The next day he runs 12 km at an average speed of (x - 1) km/h. Therefore, the time taken by Alsonso to run 12km is 12/(x-1) hour.

Now, the time taken for the 10km run in 30minutes(0.5 hours) is less than the time taken for the 12 km run. Therefore, we can write,

[tex]\dfrac{12}{(x-1)}-\dfrac{10}{x} =0.5[/tex]

The equation for the time can be written as (12/x-1)-(10/x)=0.5.

B.) The value of x can be written as,

[tex]\dfrac{12}{(x-1)}-\dfrac{10}{x} =0.5\\\\12x-10(x-1)=0.5 \times x \times (x-1)\\\\12x - 10x +10 = 0.5x^2-0.5x\\\\2x+10 = 0.5x^2-0.5x\\\\0=0.5x^2 - 2.5x -10\\\\x = -2.623, 7.623[/tex]

Since the time can not be negative. Hence, the value of x is 7.623.

Learn more about Equation:

https://brainly.com/question/2263981

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Answer:

8.1%

Step-by-step explanation:

A P E X

Answer:

d

Step-by-step explanation:

Answer:

y to 0.78y is a decrease

Step-by-step explanation:

y by itself can also be written as 1y, and 0.78y is less than 1, thus y to 0.78y is a decrease.

Answer:

13/24 more

Step-by-step explanation:

Dina = 5/6

Natasha = 11/8

Find the LCF

6| 6, 12, 18, 24

8| 8, 16, 24

Get each fraction to have a denominator of 24

5/6 = 20/24

11/8 = 33/24

Subtract 20/24 from 33/24

33/24 - 20/24 = 13/24

Answer:

x > 5

Step-by-step explanation:

3x + 24 - 4x < 2x + 9

-x + 24 < 2x + 9

15 < 3x

3x > 15

x > 5

on a number line you would circle the 5 (don't shade in) and draw an arrow pointing to the right

Answer:

Person D

Step-by-step explanation: Because when you subtract the deductions from what the people earned. Person D has the least amount of money.

Answer:

She will make $97.5 after 10 hours of work

Step-by-step explanation:

Answer:

-20%

Step-by-step explanation:

9514 1404 393

Answer:

  x = 7

Step-by-step explanation:

You solve a linear equation by putting the variable on one side of the equal sign and a constant on the other side. Here, variables and constants are on both sides of the equal sign, so you need to separate them.

The basic idea is that you add the opposite of any term you don't want. Whenever you perform any operation (like "add"), you must do it to both sides of the equation.

We observe that x-terms have coefficients of 10 and 9. We choose to add the opposite of 9x to both sides:

  10 -9x -5 = 9x -9x +2

  x -5 = 2 . . . . simplify

Now, we still have -5 on the left, where we don't want it. So, we add its opposite (+5) to both sides:

  x -5 +5 = 2 +5

  x = 7 . . . . simplify

The solution is x = 7.

_____

Additional comment

If we were to end up with an x-coefficient other than 1, we would divide both sides of the equation by that coefficient. This will leave the x-term with a coefficient of 1.

Answer:

100

Step-by-step explanation:

The area of the non-shaded spot is 8x10, which is 80.

The area of the entire rectangle is (8+4)x(10+5) = 180.

So, to find just the shaded region, subtract the nonshaded region (80) from the entire reactangle (180) to get 100

Answer:

The answer is the second option.

Step-by-step explanation:

Because if you add all of the x you get 11 and you have 4+4 left over so the answer is 11x+8. Hope this helps!

Answer:

Step-by-step explanation:

we have

5apples+4 oranges=10

5apples+5oranges=11

from here we can say

5a=10-4 oranges

replace in the second equation

10-4 oranges+5oranges=11

1 orange=1 dollar

that means that 5apples =6 dollars

1apple=1.20 dollars

Answer:

.0589582125/*6.059852 cuhhhhh

Step-by-step explanation:

Answer: 4x+8

Step-by-step explanation:

Okay since the area for the block is X, two numbers multiplied together is X.

Since the big block has an area of X^2, then this shows the sides to be X.

This gives the sides of the block with area X to be 1 and X.

Now just add up every side like this : 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + x + x + x + x to get 4x+8

Answer:

Are there supposed to be a picture?

Step-by-step explanation:

Answer:

Graph G

Step-by-step explanation:

Graph G

Answer:

yes; [0, infinity); (0, -3)

Answer:

The answer is 14.4.

Step-by-step explanation:

Cross multiply.

8*9 = 72

5*x = 5x

72 = 5x

^ Divide both sides by 5

72/5 = 14.4

14.4 = x

Answer:

14.4

Step-by-step explanation:

8/x = 5/9             Cross Multiply

5*x = 8 * 9           Combine the right

5x = 72                Divide by 5

5x/5 = 72/5

x = 14.4

Answer:

-31.4

Step-by-step explanation:

[tex]2.7(3+5)-11-42\\=2.7*8-11-42\\=21.6-53\\=-31.4[/tex]