Evaluate the expression for r = 9. 15 + r =

Answer:

p=11

Step-by-step explanation:

1 + 11 = 12

12 × 2 = 24

so the answer is p=11

Answer:

(4, -11)

Step-by-step explanation:

We are given the system of equations:

[tex]\displaystyle \begin{cases} 3x+2y=-10\\ y=-5x+9\end{cases}[/tex]

And we want to solve by substitution.

Notice that y is isolated in the second equation.

Therefore, we can substitute the second equation into the first. This gives us:

[tex]3x+2(-5x+9)=-10[/tex]

Now, we can solve for x.

First, distribute:

[tex]\displaystyle 3x-10x+18=-10[/tex]

Next, we can combine like terms:

[tex]-7x+18=-10[/tex]

Subtract 18 from both sides:

[tex]-7x=-28[/tex]

And divide both sides by -7:

[tex]x=4[/tex]

So, the value of x is 4.

Using the second equation then, we can solve for y:

[tex]y=-5x+9[/tex]

Since we know that x = 4:

[tex]\displaystyle y = - 5(4) + 9 = -20 + 9 = -11[/tex]

So, our solution is (4, -11).

To check, we can simply substitute the x and y values and see if the two equations are true.

For the first equation:

[tex]3(4)+2(-11)=12-22=-10\stackrel{\checkmark}{=}-10[/tex]

And for the second equation:

[tex]-5(4)+9=-20+9=-11\stackrel{\checkmark}{=}-11[/tex]

Since both statements are true, (4, -11) is indeed correct!

Answer:a

Step-by-step explanation:

Answer:

my answer iA. because 16+18 =34

Answer:

there's no question

Step-by-step explanation:

Answer:

Slope= 3x

y intercept= -4

Step-by-step explanation:

Answer:

x=8

Step-by-step explanation:

add 6 to both sides

3x-6+6=18+6

3x=24

3x/3

24/3

x=8

Answer:

1552

Step-by-step explanation:

Probably anyway

Answer:

don't know

Step-by-step explanation:

not really sure

Answer:

C =-x + 550

Step-by-step explanation:

Complete question

At $350 per person, an airline anticipates selling 200 tickets for a particular flight. At $450 per person the airline anticipates selling 100 tickets for the same flight .Find the linear equation between the cost per ticket and the number of tickets.

Find the complete question attached

Let x be the total number of tickets sold

C be the cost per ticket

If C = $350, x = 200

when C = $450, x = 100

Get the slope

m = C2-C1/x2-x1

m = 450-350/100-200

m = 100/-100

m = -1

Substituting into the point slope form of the equation;

C - C1 = m(x-x1)

Substituting m = -1, C1 = 350 and x1 = 200

C - 350 = -1(x-200)

C - 350 = -x + 200

C = -x + 200 + 350

C = -x + 550

Hence the required linear equation is C =-x + 550

The linear equation should be C =-x + 550

Here we assume x be the total number of tickets sold

And,

C be the cost per ticket

Since C = $350, x = 200 and C = $450, x = 100

So, here the slope should be

[tex]m = C2-C1\div x2-x1\\\\m = 450-350\div 100-200\\\\m = 100\div -100[/tex]

m = -1

Now here we Substituting into the point slope form

So,

C - C1 = m(x-x1)

Here m = -1, C1 = 350 and x1 = 200

Now

C - 350 = -1(x-200)

C - 350 = -x + 200

C = -x + 200 + 350

C = -x + 550

It is an incomplete question. Please find the complete question below.

At $350 per person, an airline anticipates selling 200 tickets for a particular flight. At $450 per person the airline anticipates selling 100 tickets for the same flight .Find the linear equation between the cost per ticket and the number of tickets.

Learn more about equation here: https://brainly.com/question/24768692

Answer:

x=0 or x=4

Step-by-step explanation:

5x(x−4)=0

Answer:

y=2x+1

Step-by-step explanation:

Answer:

4u+44w

Step-by-step explanation:

4(u+11w)

4*u+4*11w

4u+44w

Answer:

10-x

Step-by-step explanation:

The difference of 10 and x is subtracting x from 10

Answer:

here

Step-by-step explanation:

Answer:

The opposite of -4:  4

The opposite of 5:  -5

The opposite of the opposite of -6:  -6

Answer:

u

Step-by-step explanation:

Answer:

350 - 200 = 150

150 is total games purchased

now divide 150 by 25

150 / 25 = 6

Timani bought 6 video games, and one console for 350

Answer:

Your answer is

slope is -1

y intercept is 12

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Answer:The difference between the number of children and adults=153

Step-by-step explanation:

ratio of men to women to children is 1:3:20

Total RATIO = 1+ 3+ 20= 24

Number of men = ratio of men / Total ratio x  Total Number of people on the trip =

= 1/24 x 216= 9 men

Number of women=ratio of women / Total ratio x  Total Number of people on the trip = 3/ 24 x 216 = 3x 9= 27 women

Number of children=ratio of Children/ Total ratio x  Total Number of people on the trip = 20/24 x 216= 20 x9 = 180 children

The difference between the number of children and adults will be 180 -27 = 153

Answer:

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

Step-by-step explanation:

Use the slope formula [tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex] to find the slope, or [tex]m[/tex]. The [tex]x_1[/tex] and [tex]y_1[/tex] represent the x and y values of one point, and the [tex]x_2[/tex] and [tex]y_2[/tex] represent the x and y values of another point. So, substitute the x and y values of the points (14, -18) and (5, -12) into the formula and solve:

[tex]m = \frac{(-12)-(-18)}{(5)-(14)}\\m = \frac{-12+18}{5-14}\\m = \frac{6}{-9} \\m = -\frac{2}{3}[/tex]

Thus, the slope is [tex]-\frac{2}{3}[/tex].

Answer: Choice D) As the side length increases by 1, the area increases and then decreases by an equal factor

=============================================================

Explanation:

Choice A is ruled out because the area does change. As x changes, y changes as well. This rules out choice B as well.

Choice C is somewhat close. However, it's not entirely true since the area doesn't increase by the same amount. For instance, the jump from points (2,18) to (3,24) indicate that the jump in y value is +6. But going from (3,24) to (4,28) shows a jump of +4 in the y value. So we can rule out choice C.

This means that choice D is the final answer.

The answer ➪ n = 7

Explanation:

-3n + 1 = -20

-3n = -20 - 1

-3n = -21

n = 7

Answer: 198 miles

Step-by-step explanation:

Here's the complete question:

The Nile river is 4160 miles long, you want to spend three weeks traveling the entire length of the river. Estimate the number of miles you should travel each day.

We should note that 7days = 1 week

3 weeks = 3 × 7 = 21 days.

The number of miles that should be travelled each day will be:

= 4160 / 21

= 198 miles

Answer:

15 blocks per hour

Answer:

Step-by-step explanation:

first the answer is most definenetly 130 and 160 and i dont think its 30 so 50.

Answer:

x=-3/2, 9/4

Step-by-step explanation: